Question

if 2.sin 20 =V3, then prove that 3 coto-2 sin 0 =8. ​

Answer 1

Step-by-step explanation:

$2 \sin(2a) = \sqrt{3} \\ \sin(2a) = \frac{ \sqrt{3} }{2} \\ 2a = 60 \\ a = 30 \\ \\ 3 \cot(a) - 2 \sin(a) = 8 \\ 3 \sqrt{3} - 1 = 8$