Question

(ix) Using first principle find the derivative of 3/x^2 ​

Answer 1

Answer:

First principle is lim

h→0

h

f(x+h)−f(x)

⟹lim

h→0

h

3(x+h)−3x

lim

h→0

h

3x+3h−3x

lim

h→0

h

3h

=3