math
posted by jessica .
how would i find the derivative of this problem: t.3t^2+cos 4t? I don't know how to find the derivative of cos 4t

d/dx cos4x= sin 4x (4) or 4sin(4x)
posted by jessica .
how would i find the derivative of this problem: t.3t^2+cos 4t? I don't know how to find the derivative of cos 4t
d/dx cos4x= sin 4x (4) or 4sin(4x)