+0  
 
+1
48
1
avatar+2507 

Help #48,49

NotSoSmart  May 7, 2018
Sort: 

1+0 Answers

 #1
avatar+86643 
+1

48.....We can use the tangent inverse to find this

 

atan (5.67)  =  79.997°  ≈   80°

 

 

49.

 

sin^2  θ                 1   - cos^2  θ            ( 1 - cos  θ) ( 1 + cos  θ)                   1  +  cos  θ

_________   =      __________    =      ____________________   =  

1  - cos  θ               1  - cos  θ                (1  -  cos  θ)

 

 

 

cool cool cool

CPhill  May 7, 2018

10 Online Users

avatar
New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy