4/13 - Pre-Calculus - Check in

 $Sin^2\theta\ +\ Cos^2\theta\ =1\ \$ , 

Given the Identity above,  Which of the following is equivalent to  $Sin^2\theta$  ?

•  $\tan^2\theta\ -1$  

•  $1-Cos^2\theta$  

•  $1-Sin^2\theta$  

•  $Sin^2\theta-1$  

Simplify  $\sin x\sec x$  

•  $\csc x$  

•  $\tan x$  

•  $\cot x$  

•  $\cos x$  

cotθ =

• cosθ/sinθ

• sinθ/cosθ

• tanθ

• 1/cosθ

secθ=

• 1/cosθ
• 1/sinθ
• 1/tanθ
• 1/cscθ

Simplify:  $\frac{2x^2-11x+12}{x^2+2x-24}$  

•  $\frac{2x-3}{x-4}$  

•  $\frac{\left(x-12\right)\left(2x+1\right)}{\left(x+6\right)\left(x-4\right)}$  

•  $\frac{\left(x-3\right)\left(x-8\right)}{\left(x+6\right)\left(x-4\right)}$  

•  $\frac{2x-3}{x+6}$