নিচের তথ্যগুলো দেখ- i. ( quad sin ^ -1 x+ cos ^ -1 x= pi 2 , x in[-1,1] ) ii. ( sec ^ -1 x+ operatorname cosec ^ -1 x= pi 2 ), ( x in(- infty,-1] cup[1, infty) ) iii. ( sin ^ -1 (

\quad \sin ^{-1} \mathrm{x}+\cos ^{-1} \mathrm{x}=\frac{\pi}{2}, \mathrm{x} \in[-1,1]

SSNIC 24

\quad \sin ^{-1} \mathrm{x}+\cos ^{-1} \mathrm{x}=\frac{\pi}{2}, \mathrm{x} \in[-1,1]

SSNIC 24

নিচের তথ্যগুলো দেখ- i. ( quad sin ^ -1 x+ cos ^ -1 x= pi 2 , x in[-1,1] ) ii. ( sec ^ -1 x+ operatorname cosec ^ -1 x= pi 2 ), ( x in(- infty,-1] cup[1, infty) ) iii. ( sin ^ -1 ( sin x)=x,-1 leq x leq 1 ) নিচের কোনটি সঠিক?