Góc có số đo 22 ° 3 0 ′ 22\degree30' 2 2 ° 3 0 ′ đổi sang radian:

7 π 12 \frac{7\pi}{12} 1 2 7 π

Giá trị của cot ⁡ 89 π 6 \cot\frac{89\pi}{6} cot 6 8 9 π là:

− 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 \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">

− 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">

Rút gọn biểu thức A

A = 2 sin ⁡ a A=2\sin a A = 2 sin a

A = 2 cos ⁡ a A=2\cos a A = 2 cos a

A = sin ⁡ a − cos ⁡ a A=\sin a-\cos a A = sin a − cos a

Kiểm tra Lượng giác 10 lớp 10 (25 câu)

25 questions

Show all answers

1.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

Góc có số đo $\frac{\pi}{9}$ đổi sang độ là

(a)

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Góc có số đo $22\degree30'$ đổi sang radian:

$\frac{\pi}{8}$

$\frac{7\pi}{12}$

$\frac{\pi}{6}$

$\frac{\pi}{5}$

3.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

(a)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Một đường tròn có bán kính 20 cm.
Tìm độ dài của cung trên đường tròn đó có số đo $\frac{\pi}{15}$

4,18 m

95,49 cm

95,50 cm

4,18 cm

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$\frac{5\pi}{2}$

$\frac{5\pi}{3}$

$\frac{2\pi}{5}$

$\frac{\pi}{3}$

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cung nào sau đây có mút trùng với B hoặc B'

$\alpha=\frac{\pi}{2}+k2\pi$

$\alpha=-\frac{\pi}{2}+k2\pi$

$\alpha=90\degree+k.360\degree$

$\alpha=90\degree+k.180\degree$

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Góc $\frac{\pi}{4}$ thuộc góc phần tư thứ mấy?

I

II

III

IV

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Giá trị của $\cot\frac{89\pi}{6}$ là:

$\sqrt{3}$

$-\sqrt{3}$

$\frac{\sqrt{3}}{3}$

$-\frac{\sqrt{3}}{3}$

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Kiểm tra Lượng giác 10

Góc có số đo π9\frac{\pi}{9}9π​ đổi sang độ là (a)

Góc có số đo 22°30′22\degree30'22°30′ đổi sang radian:

(a)

Một đường tròn có bán kính 20 cm. Tìm độ dài của cung trên đường tròn đó có số đo \frac{\pi}{15}15π​

Cung nào sau đây có mút trùng với B hoặc B'

Góc π4\frac{\pi}{4}4π​ thuộc góc phần tư thứ mấy?

Giá trị của cot⁡89π6\cot\frac{89\pi}{6}cot689π​ là:

Chọn đẳng thức sai trong các đẳng thức sau:

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Discover more resources for Mathematics

Góc có số đo $\frac{\pi}{9}$ đổi sang độ là

(a)

Góc có số đo $22\degree30'$ đổi sang radian:

Một đường tròn có bán kính 20 cm.
Tìm độ dài của cung trên đường tròn đó có số đo $\frac{\pi}{15}$

Góc $\frac{\pi}{4}$ thuộc góc phần tư thứ mấy?

Giá trị của $\cot\frac{89\pi}{6}$ là: