4sin2 x – 3 = 0, find x if 0 \(\geq\) x \(\geq\) 90o

Explanation

4 sin²x - 3 = 0

sin²x = \(\frac{3}{4}\)

Sin x = \(\pm\) \(\sqrt{\frac{3}{4}}\)

= \(\pm\) \(\sqrt{\frac{3}{4}}\)

= 60^o