Guest

Given that - CosA + cos*2A = 1 CosA = 1 - cos*2A CosA = Sin*2A Now, put the value of cosA in R. H. S Sin*2A + sin*4A CosA + cos*2A Hence proved, LHS=RHS

Given that -
CosA + cos*2A = 1 
CosA = 1 - cos*2A
CosA = Sin*2A
Now, put the value of cosA in R. H. S
Sin*2A + sin*4A  
CosA + cos*2A
Hence proved, LHS=RHS
 

Grade:10

2 Answers

Arun
25750 Points
3 years ago
Dear student
 
What is the question part. Please check and repost the question. You can also attach an image.
Vikas TU
14149 Points
3 years ago
Dear student 
Question is not clear 
Please attach an image, 
We will happy to  help you 
Good Luck
Cheers

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free