Question

pls answer this question plzzzzzz.......​

Answer 1

Answer:

$2 \cos {}^{2} (x) - \sqrt{3 }{\sin(x) } + 1 = 0 \\ since \: \: \cos {}^{2} (x) = 1 - \sin {}^{2} (x) \\ \\ 2(1 - \sin {}^{2} (x) ) - \sqrt{3} \sin(x) + 1 = 0 \\ 2 \sin {}^{2} (x) - \sqrt{3} \sin(x) + 3 = 0 \\ let \: \: \sin(x) = y \\ \\ 2 {y}^{2} - \sqrt{3} y + 3 = 0$

D = 3-24 = -21< 0

No real value exists