5. (1 pts) Perform the indicated operation simplify the answer when possible, rationalize the denominator when possible. \text { a) } \frac{\sqrt{2}}{\sqrt{3}}+\frac{\sqrt{3}}{\sqrt{2}} \text { b) } \frac{-\sqrt{150}}{\sqrt{3}} \text { c)

} 4 \sqrt{12}+2 \sqrt{75} \text { d) } 4 \sqrt{2}-8 \sqrt{10} \times \sqrt{5}