Math, asked by devanshbhatt20, 3 months ago

cos⁴x + sin²x cos²x = cos²x
prove this identity

Answers

Answered by shubham829244

1

Answer:

This is a problem of trigonometric identity.

Step-by-step explanation:

cos⁴x + sin²x cos²x = cos²x

take cos²x common from LHS.

now,

cos²x(cos²x + sin²x) = cos²x

[since, cos²x + sin²x =1]

cos²x. 1 = cos²x

cos²x = cos²x

Hence, LHS = RHS proved

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