Simplify
\[ \sqrt{10} \times \sqrt{15} \]
Solution:
\[ \sqrt{10} \times \sqrt{15} = \sqrt{150} \]
\[ = \sqrt{25 \times 6} \]
\[ = 5\sqrt{6} \]
\[ \therefore \text{Correct Answer: } 5\sqrt{6} \ (\text{Option a}) \]
\[ \sqrt{10} \times \sqrt{15} \]
\[ \sqrt{10} \times \sqrt{15} = \sqrt{150} \]
\[ = \sqrt{25 \times 6} \]
\[ = 5\sqrt{6} \]
\[ \therefore \text{Correct Answer: } 5\sqrt{6} \ (\text{Option a}) \]