Math, asked by Panda1794, 3 months ago

cos⁴A - sin⁴A

i have posted this question three times plz help me

Answers

Answered by princetheking18

7

Step-by-step explanation:

cos²A • Cos²A - sin²A • sin² A

sin² A + cos²A = cos²A + sin² A

1 = 1

LHS = RHS

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