if sina+cosa=1then sina×cosa=?
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Step-by-step explanation:
SinA + CosA = 1
Squaring on both Sides
(SinA + CosA)² = (1 )²
Sin²A + Cos²A + 2SinACosA = 1
1 + 2SinACosA = 1
2SinACosA = 0
SinACosA = 0/2 = 0
=> SinA * CosA = 0.
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