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Grade 12Wave Motion

if x = 10 sin^3 (pi t) ...find amplitude and frequency

Profile image of rahul agrwl
13 Years agoGrade 12
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2 Answers

Profile image of JAYANT ARORA
13 Years ago

Amplitude is 10

Profile image of rahul agrwl
13 Years ago

so easy guys.... just write sin^3 x in terms of sinx and sin 3x ....

sin 3x = 3 sinx - 4 sin ^3x.......

then the given question becomes combo of 2 shms .....and amplitude is 10 /4....just wanna check  u guys.

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