MHB Area between Curves: Find 1st Quadrant

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SUMMARY

The area of the region in the first quadrant bounded by the line \(y=x\), the line \(x=2\), and the curve \(y=\frac{1}{x^2}\) is calculated using the definite integral \(\int_{1}^{2}\left(x-\frac{1}{{x}^{2}}\right) \,dx\). The evaluation of this integral yields an area of 1. The calculation steps include finding the antiderivative \(\left[\frac{x^2}{2}+\frac{1}{x}\right]_1^2\) and simplifying to confirm the result.

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karush
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Find the area of the region in the first quadrant
bounded by the line $y=x$, the line $x=2$, the curve $y=\frac{1}{x^2}$

$$\int_{1}^{2}\left(x-\frac{1}{{x}^{2}}\right) \,dx$$
just seeing if this is the way to go.

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Looks good to me!
 
The rest was easy the Area $ = 1$
 
Let's just see about that...

$$\int_1^2\left(x-\frac{1}{{x}^{2}}\right)\,dx=\left[\frac{x^2}{2}+\frac{1}{x}\right]_1^2=\left(2+\frac{1}{2}\right)-\left(\frac{1}{2}+1\right)=1$$

Yep...you are correct. (Mmm)
 

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