how does v225=15????????

if v mean square root then that means what number, multiplied by itself equals the original number.

so for 225, 15 * 15 = 225

other example.... v100 = 10.

±√225
= ±√(15 x 15)
= ±15

What is "v225"?


*** Oh ok Manisha, thanks.....then he/she should have stated this, or wrote it appropriately.

The Sqrt(225)...or....√225 = 15

==> 225 = 15²

That's how it works.

because 15^2 = 225

v=15/225=0.06666667

the "v" probably means square root so the square root of 225 = 15, so 15 = 15.

v is square root

Let x=225^1/2, then
x^2=225=>
x^2-225=0=>
x^2-15^2=0=>
(x-15)(x+15)=0=>
x=15 (reject the -ve root)