Trigonometric Identity

Simplify:  $\cot x\sin x\sec^2x$ 

•  $\cos x$  

•  $\tan x$  

•  $\csc x$  

•  $\sec x$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which of the following is false?

• $\sin\left(-x\right)=-\sin\left(x\right)$

• $\cos\left(-x\right)=-\cos\left(x\right)$

• $\tan\left(-x\right)=-\tan\left(x\right)$

• $\cot\left(-x\right)=-\cot\left(x\right)$

Tags

CCSS.HSF.TF.A.4

Simplify:  $\frac{\sin^2x}{1+\cos x}-1$ 

•  $\frac{1-\cos x}{\sin x}$  

•  $0$  

•  $-\cos x$  

•  $\csc x-1$  

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3

Simplify:  $\left(\cos x-\sin x\right)^2$ 

•  $1$  

•  $\cos2x$  

•  $\cos2x+\sin2x$  

•  $1-\sin2x$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

*

• csc² x
• cot² x
• sin² x
• sec² x

What is csc(x) equivalent to?

• 1/sin(x)
• 1/tan(x)
• sin(x)
• 1/cos(x)

Tags

CCSS.HSF.TF.A.4

Please select the correct solution 
cos ² x + sin ² x=  

• 1
• csc ² x + sec ² x
• sin ² x
• 1 - sin ² x

Tags

CCSS.HSF.TF.C.8

• sin²θ
• cosθ
• tanθ
• 1- sin²θ

Tags

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

6) (secx-1)(secx+1)

• tan²x
• sinx
• cot²x
• cosx

5) tanxcotx-cos²x

• tanx
• cotx
• sin²x
• cos²x

Tags

CCSS.HSF.TF.C.8