C-09-Q124mediumsingle_mcqcosec30∘=?\operatorname{cosec} 30^\circ = ?cosec30∘=?a111b222c2\sqrt{2}2d23\dfrac{2}{\sqrt{3}}32ব্যাখ্যাcosec30∘\operatorname{cosec}30^\circcosec30∘ is the reciprocal of sin30∘=12\sin30^\circ=\tfrac12sin30∘=, so .