Trig Identities Assessment

Simplify: $\cot x\sec x$ 

Simplify down to 1 trig function, if the function is squared type it by holding shift 6 for exponents (ex: cos^2x)

 $\left(1+\cos x\right)\left(1-\cos x\right)$  

Simplify down to 1 trig function, if the function is squared type it by holding shift 6 for exponents (ex: cos^2x)

 $\sec x\cos^2x$  

Simplify down to 1 trig function, if the function is squared type it by holding shift 6 for exponents (ex: cos^2x)

 $\frac{\csc x}{\sin x}$  

Explain why

 $\sin^2x+\cos^2x=1$  

Which of the following expressions is equal to

 $\tan x\sin x+\cos x$  ?

•  $\csc x$  

•  $\sec x$  

•  $\sin x$  

•  $\tan2x$  

Which expression is equivalent to the following expression:

 $\frac{\sin^2x+1}{\sin x}$  

•  $\sin x+\sec x$  

•  $\sin x+\tan x$  

•  $\sin x+\csc x$  

•  $\sin x+\cot x$  

Simplify

 $\sin x\cos^2x-\sin x$  

•  $-\sin^3x$  

•  $\cos^3x$  

•  $\sin^3x$  

•  $-\cos^3x$  

Simplify

 $\frac{\tan^2x}{\tan^2x+1}$  

•  $\tan^2x$  

•  $\cos^2x$  

•  $\sin^2x$  

•  $\cot^2x$  

Simplify

 $\cos^4x+\sin^2x\cos^2x$  

•  $1$  

•  $\cos^2x\sin x$  

•  $\sin^2x$  

•  $\cos^2x$