Math, asked by babitagautam134, 1 year ago

Prove that (1-sinA+cosA)^2=2(1-sinA)(1+cosA)

Answers

Answered by Anonymous
0
1-2SinA+Sin^2A +Cos^2A+ 2(1-SinA).CosA

=1-2SinA + 1 +2CosA - 2SinA.CosA

=2-2SinA+2CosA-2Ă—SinA.CosA

=2(1-SinA +CosA -SinA.CosA)

=2{1(1-SinA) +CosA(1-SinA)}

=2 (1-SinA)(1+CosA)

L.H.S =R.H.S proved

Anonymous: mark it BRAINLIEST
babitagautam134: Plwase explain properly
Anonymous: Sin^2 A +Cos^2 A=1
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