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OpenStudy (anonymous):
what would be the critical points for cos20(thats theta not 0) , 0
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OpenStudy (amistre64):
thats 2 cycles of cosine in a normal period..
OpenStudy (amistre64):
cos is normally 0 at pi/2 and 3pi/2
OpenStudy (amistre64):
and inflects at o and pi
OpenStudy (amistre64):
do i have that backwards?
OpenStudy (amistre64):
high points at 0 and pi ....yeah
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OpenStudy (amistre64):
regardless, its criticals are at -2sin(2t)
OpenStudy (anonymous):
oh ok, thanks a lot
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