Question

✓3 sin a=cos a then find the value of 3cos^2a+2cos a/3cos a+2

Answer 1

✓3 sin a=cos a
$\frac{sina}{cosa} = \frac{1}{ \sqrt{3} }$
$tana = \frac{1}{ \sqrt{3} }$
tan a = tan 30°
a = 30°

put the value of a in equation