Can you prove which is the tangent equation using derivative.
Why the tangent line $l$ through $(x_{0}, f(x_{0}))$ with slope $f'(x_{0})$ is: $$l(x)=f(x_{0})+f'(x_{0})(x-x_{0}) \mbox{?}$$
Thank!
Can you prove which is the tangent equation using derivative.
Why the tangent line $l$ through $(x_{0}, f(x_{0}))$ with slope $f'(x_{0})$ is: $$l(x)=f(x_{0})+f'(x_{0})(x-x_{0}) \mbox{?}$$
Thank!