L'Hôpital's Rule is a powerful tool used to find the limit of an indeterminate form. It can be used when the limit of a function f(x) divided by another function g(x) as x approaches some number, say c, results in an expression with 0/0 or ∞/∞ form which is considered as indeterminate. In that case we use L’Hôpital’s Rule to evaluate such limits. This rule states that if lim𝑥→𝑐 𝑓(𝑥)/𝑔(𝑥)=∞/∞ or 0/0 then we can take derivatives of both numerator and denominator separately and divide them to get the limit. To make sure it satisfies all the conditions for application of this rule, you must check whether both functions are differentiable at ‘c’ (the point where they have equal values). Furthermore, its derivative must not result in an expression with 0/0 or ∞/∞ form again; otherwise you cannot determine its value using L'Hôpital's Rule again .In short , L Hopitals Rule can be applied when two functions tend towards infinity or zero at same point and their derivatives satisfy certain criteria