Question

Sin^2A+Cos^2B=1 then find the value of cos^2A+sin^2B.

Answer 1

Answer:

we know that , sin²a+'cos²a = 1

Given,

sin²a+cos²b = 1

comparing we get cosa = cosb

putting this in ,

cos²a+sin²b = cos²b+sin²b = 1 (Ans.)

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