For {{MATH_60}}, compute: {{MATH_61}} {{CMD_62}} The function {{MATH_63}} is tricky to differentiate. We cannot use the power rule, as the exponent is not a constant; the function is not an exponential function either, since the base is not a constant. However, if we set {{MATH_64}} we can write {{ENV_65}} Differentiating both sides, we find {{MATH_66}} Now we can solve for {{MATH_67}}, {{MATH_68}} Alternative way: We can write {{MATH_69}} Therefore, {{MATH_70}} by the Chain Rule and the Product Rule. Now, it follows that {{MATH_71}} {{CMD_72}} {{CMD_73}}