Question

 Find a and b such that equation exists.

24 Mar 2026
Answer :
Word Count : 180
We are asked to find (a) and (b) such that [ \lim_{x \to 0} \frac{a \tan x + b x}{x^3} \text{ exists.} ] Start by expanding (\tan x) as a Maclaurin series: [ \tan x = x + \frac{x^3}{3} + O(x^5)
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