Math, asked by kalidasanpottiedaman, 11 months ago

Prove that sin^4x + cos^4x =1- 2sin^2x cos^2x


This is a mathematical question from internet. Please prove it for me.....

Answers

Answered by spiderman2019
0

Answer:

Step-by-step explanation:

sin⁴x + cos⁴x =  (sin²x)² + (cos²x)²

                      = (sin²x+cos²x) - 2*sin²x*cos²x

                      =  1 - 2*sin²x*cos²x

                      = R.H.S

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