C-09-Q047mediumsingle_mcq1+cot2θ1+\cot^2\theta1+cot2θ এর মান—asec2θ\sec^2\thetasec2θbcosec2θ\operatorname{cosec}^2\thetacosec2θctan2θ\tan^2\thetatan2θdsin2θ\sin^2\thetasin2θ