+0  
 
0
267
1
avatar

Use the power reducing formulas to rewrite cot^24xsin^44x in terms of the first power of cosine.

Guest Jun 4, 2017
 #1
avatar+87321 
+1

I'm going to assume this is

 

cot^2(4x)sin^2(4x)   ....if so....

 

[ cos^2 (4x) / sin^2(4x)]  *  sin^2 (4x)   =

 

cos^2 (4x)   

 

Using  the reduction formula :

 

cos^2(θ)  =   [ 1  + cos (2θ) ]  /  2         we have

 

cos^2 (4x)   =  

 

[  1 + cos (8x) ]  / 2   =  

 

1 / 2   +   cos(8x) / 2

 

 

 

cool cool cool

CPhill  Jun 4, 2017

13 Online Users

avatar
avatar
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.