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Mathematics 11 Online
OpenStudy (anonymous):

the periodic function of cos 4x is a) pi b) pi/2 c) 2 pi d) 4 pi

ganeshie8 (ganeshie8):

hint : cos(4x) rund 4 times faster than cos(x)

ganeshie8 (ganeshie8):

*runs

OpenStudy (binary3i):

of cos(theta) is 2pi so after theta = 2pi. here theta is 4x so 4x=2pi. x=pi/2 here is your period lol

OpenStudy (anonymous):

thanks guys !

ganeshie8 (ganeshie8):

np :)

OpenStudy (binary3i):

welcome

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