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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def x_rotate(rotationAmt):
 """Create a matrix that rotates around the x axis."""

        ma4 = Matrix4((1, 0, 0, 0),
                      (0, math.cos(rotationAmt), -math.sin(rotationAmt), 0),
                      (0, math.sin(rotationAmt), math.cos(rotationAmt), 0),
                      (0, 0, 0, 1))

        return ma4