sin ⁡ \sin sin - sinusul unui unghi reprezintă raportul

c a t e t a o p u s a ˘ i p o t e n u z a ˘ \frac{cateta\ opusă}{ipotenuză} i p o t e n u z a ˘ c a t e t a o p u s a ˘

c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘ \frac{cateta\ alăturată}{cateta\ opusă} c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a a l a ˘ t u r a t a ˘ i p o t e n u z a ˘ \frac{cateta\ alăturată}{ipotenuză} i p o t e n u z a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘ \frac{cateta\ opusă\ }{cateta\ alăturată} c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘

cos ⁡ \cos cos - cosinusul unui unghi reprezintă raportul

c a t e t a a l a ˘ t u r a t a ˘ i p o t e n u z a ˘ \frac{cateta\ alăturată}{ipotenuză} i p o t e n u z a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘ \frac{cateta\ alăturată}{cateta\ opusă} c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a o p u s a ˘ i p o t e n u z a ˘ \frac{cateta\ opusă}{ipotenuză} i p o t e n u z a ˘ c a t e t a o p u s a ˘

c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘ \frac{cateta\ opusă\ }{cateta\ alăturată} c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘

t g tg\ t g - tangenta unui unghi reprezintă raportul

c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘ \frac{cateta\ opusă\ }{cateta\ alăturată} c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘

c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘ \frac{cateta\ alăturată}{cateta\ opusă} c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a o p u s a ˘ i p o t e n u z a ˘ \frac{cateta\ opusă}{ipotenuză} i p o t e n u z a ˘ c a t e t a o p u s a ˘

c a t e t a a l a ˘ t u r a t a ˘ i p o t e n u z a ˘ \frac{cateta\ alăturată}{ipotenuză} i p o t e n u z a ˘ c a t e t a a l a ˘ t u r a t a ˘

ctg ⁡ \operatorname{ctg}\ c t g - cotangenta unui unghi reprezintă raportul

c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘ \frac{cateta\ alăturată}{cateta\ opusă} c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a o p u s a ˘ i p o t e n u z a ˘ \frac{cateta\ opusă}{ipotenuză} i p o t e n u z a ˘ c a t e t a o p u s a ˘

c a t e t a a l a ˘ t u r a t a ˘ i p o t e n u z a ˘ \frac{cateta\ alăturată}{ipotenuză} i p o t e n u z a ˘ c a t e t a a l a ˘ t u r a t a ˘

c a t e t a o p u s a ˘ c a t e t a a l a ˘ t u r a t a ˘ \frac{cateta\ opusă\ }{cateta\ alăturată} c a t e t a a l a ˘ t u r a t a ˘ c a t e t a o p u s a ˘

sin ⁡ 30 ° \sin\ 30\degree sin 3 0 ° este egal cu

2 2 \frac{\sqrt{2}}{2} 2 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 2 \frac{\sqrt{3}}{2} 2 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 \sqrt{3} 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 3 \frac{\sqrt{3}}{3} 3 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

cos ⁡ 45 ° \cos\ 45\degree cos 4 5 ° este egal cu

2 2 \frac{\sqrt{2}}{2} 2 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 2 \frac{\sqrt{3}}{2} 2 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 \sqrt{3} 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 3 \frac{\sqrt{3}}{3} 3 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

t g 60 ° tg\ 60\degree t g 6 0 ° este egal cu

3 \sqrt{3} 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

2 2 \frac{\sqrt{2}}{2} 2 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 2 \frac{\sqrt{3}}{2} 2 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 3 \frac{\sqrt{3}}{3} 3 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

sin ⁡ 60 ° \sin\ 60\degree sin 6 0 ° este egal cu

3 2 \frac{\sqrt{3}}{2} 2 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

2 2 \frac{\sqrt{2}}{2} 2 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 \sqrt{3} 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

3 3 \frac{\sqrt{3}}{3} 3 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

Noțiuni de trigonometrie în triunghiul dreptunghic

Authored by Maria Ile

Mathematics

7th - 8th Grade

Used 36+ times

Noțiuni de trigonometrie în triunghiul dreptunghic

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14 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\sin$ - sinusul unui unghi reprezintă raportul

$\frac{cateta\ alăturată}{cateta\ opusă}$

$\frac{cateta\ opusă}{ipotenuză}$

$\frac{cateta\ alăturată}{ipotenuză}$

$\frac{cateta\ opusă\ }{cateta\ alăturată}$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\cos$ - cosinusul unui unghi reprezintă raportul

$\frac{cateta\ alăturată}{cateta\ opusă}$

$\frac{cateta\ opusă}{ipotenuză}$

$\frac{cateta\ alăturată}{ipotenuză}$

$\frac{cateta\ opusă\ }{cateta\ alăturată}$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$tg\$ - tangenta unui unghi reprezintă raportul

$\frac{cateta\ alăturată}{cateta\ opusă}$

$\frac{cateta\ opusă}{ipotenuză}$

$\frac{cateta\ alăturată}{ipotenuză}$

$\frac{cateta\ opusă\ }{cateta\ alăturată}$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Noțiuni de trigonometrie în triunghiul dreptunghic

sin⁡\sinsin - sinusul unui unghi reprezintă raportul

cos⁡\coscos - cosinusul unui unghi reprezintă raportul

tg tg\ tg - tangenta unui unghi reprezintă raportul

ctg⁡ \operatorname{ctg}\ ctg - cotangenta unui unghi reprezintă raportul

sin⁡ 30°\sin\ 30\degreesin 30° este egal cu

cos⁡ 45°\cos\ 45\degreecos 45° este egal cu

tg 60°tg\ 60\degreetg 60° este egal cu

sin⁡ 60°\sin\ 60\degreesin 60° este egal cu

sin⁡2x +cos⁡2 x =\sin^2x\ +\cos^{2\ }x\ =sin2x +cos2 x = (a)

Se consideră triunghiul ABC dreptunghic A, AB=4cm, BC=5cm și CA=3cm. Determinați cos B. (a)

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$\sin$ - sinusul unui unghi reprezintă raportul

$\cos$ - cosinusul unui unghi reprezintă raportul

$tg\$ - tangenta unui unghi reprezintă raportul

$\operatorname{ctg}\$ - cotangenta unui unghi reprezintă raportul

$\sin\ 30\degree$ este egal cu

$\cos\ 45\degree$ este egal cu

$tg\ 60\degree$ este egal cu

$\sin\ 60\degree$ este egal cu

$\sin^2x\ +\cos^{2\ }x\ =$

(a)

Se consideră triunghiul ABC dreptunghic A, AB=4cm, BC=5cm și CA=3cm. Determinați cos B.

(a)