Question #59214
1 Answer
Jan 16, 2017
1 + sin 4x
Explanation:
Use trig identity:
sin 2a = 2sin a.cos a
In this case:
1 + 2sin 2x.cos 2x = 1 + sin 4x
1 + sin 4x
Use trig identity:
sin 2a = 2sin a.cos a
In this case:
1 + 2sin 2x.cos 2x = 1 + sin 4x