Math, asked by PhoenixOp, 4 months ago

If Sin + Cos = √x, find value of Sin . Cos

Answers

Answered by Pratik2759

1

Step-by-step explanation:

given sinA+cosA=√x

squaring both sides we get

(sinA+cosA)²=x

sin²A+cos²A+2sinAcosA= x

since sin²A+cos²A=1

1+2sinAcosA=x

sinAcosA= (x-1)/2

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