- #1
Maliken
- 3
- 0
Homework Statement
find the equation of the line perpendicular to the tangent line at the given point f(x)= x√x P(1,1)
Homework Equations
f(a+h) - f(a) / h
The Attempt at a Solution
ok so first i replace (f(a) and f(a+h) in the equation x√x, and then i get
1. a+h√a+h - a√a / h, then i rationalize the numerator and then i get
2. a+h)^2(a+h) - a^2(a) / h(a+h)√a+h + a√a
and if i try expanding this etc i just get indeterminate form.. where did i go wrong ?i still get indeterminate form even after using 1 instead of a