C-09-Q126mediumsingle_mcqsin60∘=?\sin 60^\circ = ?sin60∘=?a12\dfrac{1}{2}21b12\dfrac{1}{\sqrt{2}}21c32\dfrac{\sqrt{3}}{2}23d111ব্যাখ্যাFrom the standard 30∘30^\circ30∘–60∘60^\circ60∘–90∘90^\circ90∘ triangle, the side opposite 60∘60^\circ60∘ has ratio 32\dfrac{\sqrt{3}}{2}23 to the hypotenuse, giving sin60∘=32\sin 60^\circ = \dfrac{\sqrt{3}}{2}sin60∘=23.