Question

ifsin x + cosec x=2 then the value
of sin 10 x+ cosec10 x is equal to
10
20 2 100​

Answer 1

Answer:

$\sin(x) + \frac{1}{ \sin(x) } = 2$

sin²x + 1 = 2 sin x

sin²x - 2 sin x + 1 = 0

This is in a Quadratic form

$\sin(x) = \frac{ 2 + - \sqrt{4 - 4} }{2}$

sin (x) = 1

x = sin^-1 (1)

= π/2.