If sin A + cos A=root2cosA then find the value of tan A(A
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Step-by-step explanation:
SinA + CosA = √2 CosA
SinA/√2 + CosA/√2 = CosA
SinA.Sin45° + CosA.Cos45° = CosA
Cos (45-A) = CosA
45-A = A
A = 45°/2
then
Tan A = Tan (45°/2) = √2-1
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