How do you find the area of the region under the curve y=4x^-2 from x=1, to x=oo?

May 24, 2018

Area= $4$ sq. units

Explanation:

Area= ${\int}_{1}^{\infty} 4 {x}^{-} 2$

Area= ${\left[- 4 {x}^{-} 1\right]}_{1}^{\infty}$

Area= $0 - \left(- 4\right)$

Area= $4$ sq. units