Divide 1 by a sum/difference of square roots Input: An expression that is a sum/difference of square roots of positive integers. You can assme it will not equal 0. The general form is \$\pm\sqrt{a_1}\pm\sqrt{a_2}\pm\sqrt{a_3}\pm\cdots\pm\sqrt{a_n}\$ where each \$a_n\$ is a positive integer. There is no guarantee the input will be sorted or that the radicals are fully simiplfied. Duplicate \$a_k\$ are possible. Example: \$\sqrt2+\sqrt3+\sqrt7+\sqrt7-\sqrt9+\sqrt{12}\$ Output: the inverse of th...
