Math, asked by akki824, 9 months ago

sin ^4 a- cos ^4 a= sin ^2 a-cos ^2a
prove LHS =RHS

Answers

Answered by obulesu78

1

Answer:

(sin^2a)^2-(cos^2a)^2

(sin^2a-cos^2a)(sin^2a+cos^2a)

(sin^2a-cos^2a)(1)

sin^2a-cos^2a

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