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OpenStudy (anonymous):
if y=2cos(x/2), then (d^2y)/(dx^2)=
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pooja195 (pooja195):
y = 2cos(x/2) y' = -2(1/2) sin (x/2) = -sin(x/2) y'' = -(1/2) cos (x/2)
OpenStudy (anonymous):
-sin(x/2)
OpenStudy (anonymous):
ok we got 2 different answers here
OpenStudy (anonymous):
-(1/2)cos(x/2)
OpenStudy (anonymous):
there we go thank you
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