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Lim X → 0 E 3 X − E 2 X X - Mathematics

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Question

\[\lim_{x \to 0} \frac{e^{3x} - e^{2x}}{x}\] 

Solution

\[\lim_{x \to 0} \left[ \frac{e^{3x} - e^{2x}}{x} \right]\]
\[ = \lim_{x \to 0} \left[ \left( \frac{e^{3x} - 1}{x} \right) - \left( \frac{e^{2x} - 1}{x} \right) \right]\]
\[ = \lim_{x \to 0} \left[ 3\left( \frac{e^{3x} - 1}{3x} \right) - 2\left( \frac{e^{2x} - 1}{2x} \right) \right]\]
\[ = 3 \times 1 - 2 \times 1\]
\[ = 1\]

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Chapter 29: Limits - Exercise 29.1 [Page 72]

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RD Sharma Mathematics [English] Class 11
Chapter 29 Limits
Exercise 29.1 | Q 35 | Page 72

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