Question

If A=45 degree, verify 2sinA= 2sin A cosecA

Answer 1

lhs 2 sin a = 2×1/root 2 = root2

rhs... 2 sina cosec a = 2×1/root2 × root 2

= 2...

lhs does not equal rhs.

sorry question is wrong

Answer 2

$l.h.s \: = \sin(45) = \frac{1}{ \sqrt{2} } \\ \\ r.h.s \: = 2 \sin(a) \csc(a) = 2$

So the question is wrong