What is 3 sin 13x sin 3x ?
Answers
Answered by
2
3 sin 13x sin 3x
= (3×0.5) × [2sin13x * sin3x]
= 1.5 [sin(13-3)x - sin(13+3)x]
= 1.5sin 10x - 1.5sin 16x
Answered by
1
Hence, proved
...
this is your answer
Attachments:
Similar questions