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OpenStudy (anonymous):
Is Sinx times Sin5x = Sin6x?
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OpenStudy (anonymous):
is 5x times x 6x?
OpenStudy (agent0smith):
^ not sure that's a good comparison when there's sines involved @ehuman But i can't see why sinx*sin5x would = sin6x
OpenStudy (anonymous):
yeah you're right
OpenStudy (agent0smith):
Also you can graph them to check they arent the same (as opposed to expanding them) https://www.google.com/search?q=sin(x)*sin(5x)%2C+sin(6x)&oq=sin(x)*sin(5x)%2C+sin(6x)&aqs=chrome..69i57.9494j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8 pretty clearly not the same function
OpenStudy (anonymous):
no,sin6x=sin (5x+x)=sin 5x cos x+cos 5x sin x
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