Trig 4-1

Trig 4-1

Right Angle Trig

Multiple Choice

Find the exact value of  $\cos\theta$  for the given right triangle:  $A=\theta$  ,  $a=5$  , $b=8$  (image in your notes).

•  $\frac{5}{8}$  

•  $\frac{5\sqrt{13}}{13}$  

•  $\frac{8\sqrt{89}}{89}$  

•  $\frac{5\sqrt{89}}{89}$  

Multiple Choice

Quick Check 2

Find a cofunction with the same value as  $\tan\left(\frac{\pi}{12}\right)$  .

•  $\tan\left(\frac{11\pi}{12}\right)$  

•  $\cot\left(\frac{5\pi}{12}\right)$  

•  $\tan\left(\frac{5\pi}{12}\right)$  

•  $\cot\left(\frac{11\pi}{12}\right)$