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Select the correct answer from the given alternatives. limx→0[x⋅log(1+3x)(e3x-1)2] = - Mathematics and Statistics

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Question

Select the correct answer from the given alternatives.

`lim_(x -> 0) [(x*log(1 + 3x))/("e"^(3x) - 1)^2]` =

Options

  • `1/"e"^9`

  • `1/"e"^3`

  • `1/9`

  • `1/3`

MCQ
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Solution

`1/3`

Explanation;

`lim_(x -> 0) (x*log(1 + 3x))/("e"^(3x) - 1)^2` 

= `(lim_(x -> 0) (log(1 + 3x))/x)/(lim_(x -> 0)((e^(3x) - 1)/x)^2`

= `(lim_(x -> 0) [(log(1 + 3x))/(3x) xx 3])/(lim_(x -> 0)[(("e"^(3x) - 1)/(3x))^2 xx (3)^2]`

= `1/3`

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Chapter 7: Limits - Miscellaneous Exercise 7.1 [Page 158]

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