An angle θ\thetaθ satisfies cosθ1−sinθ=2.\frac{\cos\theta}{1-\sin\theta}=2.1−sinθcosθ=2. What is the value of sinθ\sin\thetasinθ? A−35-\dfrac35−53B15\dfrac1551C35\dfrac3553D45\dfrac4554E111