il grafico in figura rappresenta

cosinusoide (grafico della funzione coseno)

sinusoide (grafico della funzione seno)

Quali delle seguenti affermazioni sono corrette? (Più di una risposta possibile)

la tangente a $$\frac{\pi}{2}$$ non è definita

il seno assume valori compresi tra -1 e 1

la tangente non è definita dove il seno assume valore 0.

la tangente assume valori compresi tra -1 e 1

la tangente di un angolo è definita come:

tan ⁡ α = sin ⁡ α cos ⁡ α , α ≠ π 2 + k π \tan\alpha=\frac{\sin\alpha}{\cos\alpha},\ \alpha\ne\frac{\pi}{2}+k\pi tan α = cos α sin α , α  = 2 π + k π

tan ⁡ α = sin ⁡ α cos ⁡ α , α ≠ ± π 2 \tan\alpha=\frac{\sin\alpha}{\cos\alpha}\ \ ,\ \alpha\ne\pm\frac{\pi}{2} tan α = cos α sin α , α  = ± 2 π

tan ⁡ α = sin ⁡ α cos ⁡ α , α ≠ π + k π 2 \tan\alpha=\frac{\sin\alpha}{\cos\alpha},\ \alpha\ne\pi+k\frac{\pi}{2} tan α = cos α sin α , α  = π + k 2 π

tan ⁡ α = cos ⁡ α sin ⁡ α \tan\alpha=\frac{\cos\alpha}{\sin\alpha} tan α = sin α cos α

sin ⁡ ( − π 3 ) = . . . \sin\left(-\frac{\pi}{3}\right)=... sin ( − 3 π ) = . . .

− 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 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">

Se il seno di un angolo è minore di zero, allora l'angolo:

appartiene al 4° quadrante se il coseno è minore di zero

appartiene al 2° quadrante se il coseno è minore di zero

Il coseno di un angolo è:

Positivo nel I e IV quadrante e negativo nel II e III

Positivo nel II e IV quadrante e negativo nel I e IV

Positivo nel I e II quadrante e negativo nel III e IV

Goniometria

Authored by Laura Monti

Mathematics

11th Grade

Used 2+ times

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Primo quadrante

Secondo quadrante

Terzo quadrante

Quarto quadrante

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VERO

FALSO

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VERO

FALSO

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Considera l'angolo in figura. Quale delle seguenti affermazioni è corretta?

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