Asked by catherine
Use the limit definition of the derivative to find f′(x) if
1. f(x) = x^2 + 3x
2. f(x) = 1/x + 1
kk for number one i got
f'(x) = 2x+3
and for number two i got
f'(x) = -1/(x+1)(x+1)
can any one verify these, especially number 2.
1. f(x) = x^2 + 3x
2. f(x) = 1/x + 1
kk for number one i got
f'(x) = 2x+3
and for number two i got
f'(x) = -1/(x+1)(x+1)
can any one verify these, especially number 2.