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The area bounded by the curve y=log⁡x,y=0y = \log x, y = 0 and x=ex = e, is

Solution

✅ Correct Option: 3

The area bounded by the curve y=log⁡xy = \log x, y=0y = 0, and x=ex = e needs to be found.

The curve y=log⁡xy = \log x crosses the x-axis when log⁡x=0\log x = 0, which occurs at x=1x = 1 since log⁡1=0\log 1 = 0.

The region extends from x=1x = 1 to x=ex = e.


The area is given by:

Area =∫1elog⁡x dx= \int_{1}^{e} \log x \, dx


Using the standard integration formula:

∫log⁡x dx=xlog⁡x−x+C\int \log x \, dx = x \log x - x + C


Applying the limits:

Area =[xlog⁡x−x]1e= [x \log x - x]_{1}^{e}

At x=ex = e:

e⋅log⁡e−ee \cdot \log e - e

=e⋅1−e= e \cdot 1 - e

=0= 0

At x=1x = 1:

1⋅log⁡1−11 \cdot \log 1 - 1

=1⋅0−1= 1 \cdot 0 - 1

=−1= -1


Area =0−(−1)= 0 - (-1)

=1= 1

Therefore, the area bounded by the curve is 11 square unit.

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