MathematicsMedium63×since 2002Q3652If x=2cosec−1x = \sqrt {{2^{\cos e{c^{ - 1}}}}}x=2cosec−1 and y=2sec−1t (∣t∣≥1),y = \sqrt {{2^{se{c^{ - 1}}t}}} \,\,\left( {\left| t \right| \ge 1} \right),y=2sec−1t(∣t∣≥1), then dydx{{dy} \over {dx}}dxdy is equal to :Ayx{y \over x}xyBxy{x \over y}yxC−-− yx{y \over x}xyD−-− xy{x \over y}yxCheck answerSkip