Math, asked by Anonymous, 1 month ago

What is 3 sin 13x sin 3x ?

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Answered by Anonymous
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 Anonymous
1

Hence, proved

...

this is your answer

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