jee-main 2012 Q73

jee-main · India · 26may Small angle approximation

$\lim _ { x \rightarrow 0 } \frac { \sin \left( \pi \cos ^ { 2 } x \right) } { x ^ { 2 } }$ equals
(1) $- \pi$
(2) $1$
(3) $-1$
(4) $\pi$

$\lim _ { x \rightarrow 0 } \frac { \sin \left( \pi \cos ^ { 2 } x \right) } { x ^ { 2 } }$ equals\\
(1) $- \pi$\\
(2) $1$\\
(3) $-1$\\
(4) $\pi$