# y= e^2x(cosx) a) Show that dy/dx=e^2x (2cosx-sinx) b) Find (d^2)y/dx^2 AT the point P (a,b), (d^2)y/dx^2=0 c)Use the results from parts a and...

**atpink2x**

y= e^2x(cosx)
a) Show that dy/dx=e^2x (2cosx-sinx)
b) Find (d^2)y/dx^2 AT the point P (a,b), (d^2)y/dx^2=0
c)Use the results from parts a and b to prove that
tan a=3/4
and
the gradient of the curve at P is e^2a

- 10 years ago
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