Math, asked by ashishthakur34578, 5 months ago

Cos⁴Q+sin⁴Q-2sin²Qcos²Q=(2cos²Q-1)²

Answers

Answered by rounaksoni23gmailcom

0

Step-by-step explanation:

cos⁴Q + sin⁴Q -2sin²Qcos²Q

(cos²Q-sin²Q)² = ( cis²Q -(1-cos²Q) )

(2cis²Q - 1)²

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