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Write the value of sinθ cos(90-θ) + cosθ sin(90-θ)

+2 votes
in JEE by kratos

Write the value of sinθ cos(90-θ) + cosθ sin(90-θ)

1 Answer

+5 votes
by kratos
 
Best answer

sinθ cos(90-θ) + cosθ sin(90-θ)

= sinθsinθ + cosθcosθ

= sin2θ + cos2θ

= 1

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