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OpenStudy (anonymous):
3sin(2x)=5cosx can be rewritten as? I thought the answer was cosx(3sin-5)=0 Apparently the answer is cosx(6sinx-5)=0 Explain?
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OpenStudy (joannablackwelder):
Check out double angle formulas for sin. :)
OpenStudy (anonymous):
Yep...found out why I didn't get 6, I forgot the 2 in 2sinxcosx.
OpenStudy (joannablackwelder):
:)
OpenStudy (anonymous):
Thank you!
OpenStudy (joannablackwelder):
No worries
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