Integral of $$$\sqrt{a^{2} - b^{2} - x^{2}}$$$ with respect to $$$x$$$

The calculator will find the integral/antiderivative of $$$\sqrt{a^{2} - b^{2} - x^{2}}$$$ with respect to $$$x$$$, with steps shown.

Find $$$\int \sqrt{a^{2} - b^{2} - x^{2}}\, dx$$$.