Math, asked by yashikasoni4388, 10 months ago

If sin A + sin2 A = 1, then cos2 A + cos4 A = .........​

Answers

Answered by MяMαgıcıαη
57

Answer:

sin A + sin²A = 1

=> sinA = 1 - sin²A

=> sinA = cos²A

=> sin²A = cos⁴A

=> 1- cos²A = cos⁴A

=> 1 = cos²A + cos⁴A

or cos²A + coa⁴A = 1

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