C-09-Q031mediumsingle_mcqcosecθ\operatorname{cosec}\thetacosecθ এর মান—a1sinθ\dfrac{1}{\sin\theta}sinθ1b1cosθ\dfrac{1}{\cos\theta}cosθ1c1tanθ\dfrac{1}{\tan\theta}tanθ1dsinθcosθ\dfrac{\sin\theta}{\cos\theta}cosθsinθ