Math, asked by Anonymous, 1 year ago

if sinA + sin²A=1 then (cos²A + cos⁴A)=?

Answers

Answered by souravsarkar045
4

given that,

  SinA + Sin²A = 1

⇒ SinA = 1-Sin²A

⇒ SinA = Cos²A

Now,

Cos²A + (Cos²A)²

⇒ SinA + Sin²A

⇒ 1

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