Decide whether or not the given integral converges

Question

Note: You may need to assume the fact that lim M→+ ∞ Mⁿe^−M = 0

 for all n.

Decide whether or not the given integral converges

-4

∫1/x^2dx

-∞

(a)Is the integral a convergent or divergent?

(b)If the integral converges, compute its value. (If the integral diverges, enter DNE.)

Answer 1