Question

evaluate
lim : cos theta/sin 2theta
theta-pi/2

Answer 1

sin2theta=2sintheta*costheta

Answer 2

can you do further?

Answer 3

no i cant actually but is wat i get
csc(2theta)cos(theta)

Answer 4

\[\lim_{x \rightarrow 90 }\cos \theta /\sin2 \theta \]
we know that
\[\sin 2\theta=2 \sin \theta \cos \theta\]
\[\lim_{\theta \rightarrow 90 } \cos \theta / 2 \sin \theta \cos \theta\]
\[\lim_{ \theta \rightarrow 90} 1/ 2 \sin \theta\]
now apply limt\[1 / 2\sin 90\]
where sin90=1 so
1/2(1)
1/2 ans

Answer 5

Now any problem