I am having problems with the following question..
Evaluate dy(over)dx for y=7sin^6x
Here is where i am up to..
Let u = sinx > du(over)dx = cosx
y = 7u^6 > dy(over)du = 42u5
dy(over)dx = dy(over)du x du(over)dx = 42u^5x (cosx)
I now have to substitute U back?
Any help appreciated, thanks.