C-09-Q130mediumsingle_mcqcosec60∘=?\operatorname{cosec} 60^\circ = ?cosec60∘=?a222b23\dfrac{2}{\sqrt{3}}32c2\sqrt{2}2d111ব্যাখ্যাCosecant is the reciprocal of sine, so cosec60∘=1sin60∘=13/2=23\operatorname{cosec} 60^\circ = \dfrac{1}{\sin 60^\circ} = \dfrac{1}{\sqrt{3}/2} = \dfrac{2}{\sqrt{3}}cosec60∘=sin60.