Question

4(sin2 30° + cos2 60°) - 3 cos2 45°-1/2sin290•​

Answer 1

4(sin4 30° + cos2 60°) − 3(cos2 45° − sin2 90°) − sin2 60° By trigonometric ratios we have By substituting above values in (i), we get Read more on evaluate-each-of-the-following-4-sin-4-30-cos-2-60-3-cos-2-45-sin-2-90-sin-2-60