Question

the value of root 5root 45 is. options -a) 18 b) 9 c) 15 d) 5

Answer 1

Hi there!!

Answer is c). 15

$\sqrt{5} \sqrt{45} = \sqrt{5 \times 45}$

$\sqrt{5 \times 9 \times 5}$

$\sqrt{5 \times 3 \times 3 \times 5}$

Take 5 and 3 common to remove roots :-

$5 \times 3 = 15$

So, the answer is 15.

Hope it helps u

Answer 2

The correct option is c. 15
√5√45
√5.√5√9
5×3 = 15