Math, asked by pradnya102, 1 year ago

show that sin^4theta-cos^4theta=1-cos^2thera

Answers

Answered by Anonymous
0
sin^4theta-cos^4theta>>>>>>(sin^2theta+cos^2theta)(sin^2theta-cos^2theta)...




1-(-cos2theta)....


1+cos2theta
pradnya102: sin^2theta-cos^2theta=?
pradnya102: you erite above ans as -cos^2theta then where ie sin^2theta
Anonymous: ok
Answered by prashu52
1

Look once.. If any correction pls let me know

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