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Формулы приведения

Authored by Ivan Fomenko

Mathematics

9th Grade

Used 163+ times

Формулы приведения
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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin⁡170°=\sin170\degree=

cos⁡10°\cos10\degree

−cos⁡10°-\cos10\degree

sin⁡10°\sin10\degree

−sin⁡10°-\sin10\degree

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin⁡170°=\sin170\degree=

cos⁡80°\cos80\degree

−cos⁡80°-\cos80\degree

sin⁡80°\sin80\degree

−sin⁡80°-\sin80\degree

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin⁡(3π2−α)=\sin\left(\frac{3\pi}{2}-\alpha\right)=

sin⁡α\sin\alpha

cos⁡α\cos\alpha

−sin⁡α-\sin\alpha

−cos⁡α-\cos\alpha

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

cos⁡(3π2+α)=\cos\left(\frac{3\pi}{2}+\alpha\right)=

sin⁡α\sin\alpha

cos⁡α\cos\alpha

−sin⁡α-\sin\alpha

−cos⁡α-\cos\alpha

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

cos⁡(π2+α)=\cos\left(\frac{\pi}{2}+\alpha\right)=

sin⁡α\sin\alpha

cos⁡α\cos\alpha

−sin⁡α-\sin\alpha

−cos⁡α-\cos\alpha

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

cos⁡(π−α)=\cos\left(\pi-\alpha\right)=

sin⁡α\sin\alpha

cos⁡α\cos\alpha

−sin⁡α-\sin\alpha

−cos⁡α-\cos\alpha

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin⁡(π−α)=\sin\left(\pi-\alpha\right)=

sin⁡α\sin\alpha

cos⁡α\cos\alpha

−sin⁡α-\sin\alpha

−cos⁡α-\cos\alpha

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