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OpenStudy (anonymous):
Can anyone tell me what is wrong in this calculation ?
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OpenStudy (anonymous):
OpenStudy (amistre64):
seems fine to me
OpenStudy (amistre64):
you can rework it thru trig identities, but other than that, youve got it
OpenStudy (amistre64):
what do you think would be wrong with it?
OpenStudy (mathmate):
The answer is correct, but there are many ways of expressing the same thing. What are the choices, or are there instructions to express the answer in a certain way? It could even be: (cos(6x)-9cos(2*x)+8)/192
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