Determine whether the function is periodic. If it is periodic, find the period.
f(x) = 3 sin 2x + 4 cos 3x

Question

Determine whether the function is periodic.  If it is periodic, find the period.
f(x) =  3 sin 2x +  4 cos 3x

dan815 · Answer

yes

rajee_sam · Answer

http://www.wolframalpha.com/input/?i=3sin2x+%2B+4+cos+3x

rajee_sam · Answer

@essalytee I have posted an answer

dan815 · Answer

^ cheater

rajee_sam · Answer

ha ha

dan815 · Answer

lol

dan815 · Answer

i wonder how u really find its period tho

rajee_sam · Answer

period is one full cycle. Where the cycle starts repeating itself you stop there

dan815 · Answer

yes thanks.. how do u find its period >_> without using wolfram

dan815 · Answer

hey i know how u find the period of this!

anonymous · Answer

so what's the period?

dan815 · Answer

look at the function
y=sin2x and 
y=cos3x
the period of sin2x = Pi
and the period of cos3x=2pi/3

so whats the common multiple of both of these periods?
2pi 
so 2pi is period

dan815 · Answer

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