Is or ?
hi,
i don't understand how i would find the gradient at the following points at the given points:
y=3/x+2x+1 x=7
i know i would do:
y=3x^-1+2x+1
dy/dx=-3x^-2+2
im stuck after this because is i substitute it it looks like this:
dy/dx=-21^-2+2
what would i do from here??
thanks!