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Mathematics
OpenStudy (anonymous):

can this be simplified to just 3?... 3cos^23t + 3sin^23t

OpenStudy (anonymous):

it's \[cos^{23}(t)\] right?

OpenStudy (anonymous):

no just squared

OpenStudy (anonymous):

Yes you can :)

OpenStudy (mertsj):

\[3\cos ^2(3t)+3\sin ^2(3t)=3[\cos ^2(3t)+\sin ^2(3t)]=3(1)=3\]

OpenStudy (anonymous):

perfecto! Thanks all....just part of this problem..will def be back with more trig inqueries

OpenStudy (anonymous):

btw..what is used to show my power value in equation tool?

OpenStudy (mertsj):

yw

OpenStudy (mertsj):

The x^a button

OpenStudy (anonymous):

what about this? \[\sin3t(9\sec ^{2}3t)\]

OpenStudy (mertsj):

\[\sin (3t)(\frac{9}{\cos^2(3t)})=9\tan (3t)\sec(3t)\]

OpenStudy (anonymous):

what about cos3t(\sin (3t)(\frac{9}{\cos^2(3t)})=9\tan (3t)\sec(3t)

OpenStudy (anonymous):

not that

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