KeerthanaPosted on sin(11π6)कामूल्यक्याहै?sin left(frac{11 pi}{6} ight) का मूल्य क्या है?sin(611π)कामूल्यक्याहै? a12frac{1}{2}21 b23frac{2}{sqrt{3}}32 c−23frac{-2}{sqrt{3}}3−2 d−12frac{-1}{2}2−1 Answer : Option DExplanation : sin11π6sin frac{11 pi}{6}sin611π =sin(2π−π6)=sin left(2 pi-frac{pi}{6} ight)=sin(2π−6π) [∵sin(360∘−θ)=sin(2π−θ)=−sinθ]left[ecause sin left(360^{circ}- heta ight)=sin (2 pi- heta)=-sin heta ight][∵sin(360∘−θ)=sin(2π−θ)=−sinθ] =−sinπ6=−12=-sin frac{pi}{6}=-frac{1}{2}=−sin6π=−21 Rate This:NaN / 5 - 1 votesAdd comment
