How do you find the Limit of [(sin x) * (sin^2 x)] / [1 -( cos x)] as x approaches 0?
1 Answer
Perform some conjugate multiplication and simplify to get
Explanation:
Direct substitution produces indeterminate form
Try multiplying
This technique is known as conjugate multiplication, and it works nearly every time. The idea is to use the difference of squares property
Recall that
Now the
Finish by taking the limit of this expression: