Question

15. ✓12 X ✓15 is equal to: a)
576 b) 675 c) 1075 d) 725​

Answer 1

Answer:

$\sqrt{12} = \sqrt{2*2*3}=2\sqrt{3}$

$\sqrt{15}=\sqrt{3*5}$

$\sqrt{12}$ × $\sqrt{15} = 2\sqrt{3}$ × $\sqrt{3*5}$

                 $=2\sqrt{3*3*5}$

                 $=2*3\sqrt{5}$

                 $=6\sqrt{5}$