# I'm trying to solve this problem in MatLab

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Adam Vargas on 25 Nov 2020
Commented: Adam Vargas on 25 Nov 2020
See attached

Walter Roberson on 25 Nov 2020
What does it mean to "solve" that? Are you trying to find the bounds such that the result has a particular value?
See int() for symbolic calculation and integral() for numeric calculation.
Adam Vargas on 25 Nov 2020
This is a direct trigonometric substitution problem. I'm trying to get the following result in MatLab (see attached).

Alan Stevens on 25 Nov 2020
In terms of real numbers the integral is only defined for -1<=x<=1. By making the substitution x^2 = sin(theta) where -pi/2<=theta<=pi/2 it is easy enough to find the integral as theta/4 + sin(2*theta)/8.

#### 1 Comment

Adam Vargas on 25 Nov 2020
This is a direct trigonometric substitution problem. I'm trying to get the following result in MatLab (see below).

R2020b

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