+0  
 
0
85
1
avatar

In triangle XYZ, we have angle X = 90 and tan Z = \(2\). What is cos Z?

 May 5, 2022
 #1
avatar+13887 
+1

What is cos Z?

 

Hello Guest!

 

\(z:y=2:1\\ x:y:z=\sqrt{5}:1:2\\ \color{blue}cos\ z=\frac{1}{\sqrt{5}}=\frac{1}{5}\cdot \sqrt{5}\)

laugh  !

 May 5, 2022

25 Online Users

avatar
avatar