+0  
 
+1
72
1
avatar+2509 

Help #48,49

NotSoSmart  May 7, 2018
 #1
avatar+87293 
+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

12 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.