if cos θ + sin θ = √2 cos θ, then the value of Cos θ - Sin θ=
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Answer:
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Answer:
1/2cosθ
Explanation:
cosθ + sinθ = √2cosθ
=> (cosθ + sinθ)² = 2cos²θ
=> 1 + 2sinθcosθ = 2cos²θ
=> 1 = 2cosθ( cosθ - sinθ)
=> 1/2cosθ = cosθ - sinθ
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