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even/odd, sin(x+-y)

Authored by Akzhan undefined

Mathematics

9th - 11th Grade

Used 5+ times

even/odd, sin(x+-y)
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7 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Есепте

 sin(30°)\sin\left(-30\degree\right)  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 12-\frac{1}{2}  

-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 cos(3π4)\cos\left(-\frac{3\pi}{4}\right)  

Find the exact value using even-odd properties.

 22-\frac{\sqrt{2}}{2}  

 22\frac{\sqrt{2}}{2}  

-1

 12\frac{1}{2}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 tan(π4)\tan\left(-\frac{\pi}{4}\right)  

Find the exact value using even-odd properties.

1

-1

 22\frac{\sqrt{2}}{2}  

 3-\sqrt{3}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Жұп функцияны тап:

tan(-x)=tan(x)

sin(-x)=sin(x)

cot(-x)=cot(x)

cos(-x)=cos(x)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the formula to find sin(x+y)?

sin(x)cos(y)sin(y)cos(x)\sin\left(x\right)\cdot\cos\left(y\right)-\sin\left(y\right)\cdot\cos\left(x\right)

sin(x)cos(y)+sin(y)cos(x)\sin\left(x\right)\cdot\cos\left(y\right)+\sin\left(y\right)\cdot\cos\left(x\right)

sin(x)cos(y)sin(x)cos(y)\sin\left(x\right)\cdot\cos\left(y\right)-\sin\left(x\right)\cdot\cos\left(y\right)

sin(x)cos(y)+sin(x)cos(y)\sin\left(x\right)\cdot\cos\left(y\right)+\sin\left(x\right)\cdot\cos\left(y\right)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the formula to find sin(x-y)?

sin(x)cos(y)sin(y)cos(x)\sin\left(x\right)\cdot\cos\left(y\right)-\sin\left(y\right)\cdot\cos\left(x\right)

sin(x)cos(y)+sin(y)cos(x)\sin\left(x\right)\cdot\cos\left(y\right)+\sin\left(y\right)\cdot\cos\left(x\right)

sin(x)cos(y)sin(x)cos(y)\sin\left(x\right)\cdot\cos\left(y\right)-\sin\left(x\right)\cdot\cos\left(y\right)

sin(x)cos(y)+sin(x)cos(y)\sin\left(x\right)\cdot\cos\left(y\right)+\sin\left(x\right)\cdot\cos\left(y\right)

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Calculate
 sin(15°)\sin\left(15\degree\right)  

 6+24\frac{\sqrt{6}+\sqrt{2}}{4}  

 624\frac{\sqrt{6}-\sqrt{2}}{4}  

 264\frac{\sqrt{2}-\sqrt{6}}{4}  

 624\frac{-\sqrt{6}-\sqrt{2}}{4}  

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