maths integration

x^3/(x^2 – 4)^0.5

If x < 2, (x^2 – 4) will be a negative number. You can’t find the square root of a negative number unless you go into complex number. This function is defined for real number only.

If x = 2, (x^2 – 4) will be zero. The square root of a zero is zero. Then the function involves division by zero. The function is not defined if you have a zero in the denominator.

This function is only valid for x > 2.