C-09-Q055mediumsingle_mcqcot2θ=cosec2θ−?\cot^2\theta = \operatorname{cosec}^2\theta - ?cot2θ=cosec2θ−?a111b000ctan2θ\tan^2\thetatan2θdcos2θ\cos^2\thetacos2θব্যাখ্যাIsolating cot2θ\cot^2\thetacot2θ in 1+cot2θ=cosec2θ1 + \cot^2\theta = \operatorname{cosec}^2\theta1+cot2θ=cosec2θ gives cot2θ=cosec2θ−1\cot^2\theta = \operatorname{cosec}^2\theta - 1cot2θ=cosec2θ−1, so the missing term is 111.