What is the integral from-1 to 2 of 3/(x^4) ?

The integral from-1 to 2 of 3/(x^4) is diverges

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integral from-1 to 2 of 3/(x^4)

\int_{- 1}^{2} \frac{3}{x ^{4}} d x

diverges

Solution steps

\int_{- 1}^{2} \frac{3}{x ^{4}} d x

Find undefined (singularity) points:

x = 0

If exist

b, a < b < c, f (b) =

undefined

, \int_{a}^{c} f (x) d x = \int_{a}^{b} f (x) d x + \int_{b}^{c} f (x) d x

= \int_{- 1}^{0} \frac{3}{x ^{4}} d x + \int_{0}^{2} \frac{3}{x ^{4}} d x

\int_{- 1}^{0} \frac{3}{x ^{4}} d x =

diverges

If part of the expression diverges, then entire expression diverges

= diverges

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\int_{1}^{2} x ln (x^{2}) d x

\int_{1}^{4} (x + 1) (x^{2} + 2 x)^{2} d x

What is the integral from-1 to 2 of 3/(x^4) ?
The integral from-1 to 2 of 3/(x^4) is diverges