Math, asked by manyareddy1901, 1 month ago

cos^4A + cos^2A sin^2A = cos^2A

Answers

Answered by harshb77

0

Step-by-step explanation:

cos⁴A+cos²A sin²A

=cos²A cos²A +cos²A sin²A

=cos²A (cos²A+sin²A)

=cos²A (1)

=cos²A

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