Question

sqrt49/sqrt2

Answer 1

The sqrt of 49 is 7. We know that. But the square root of 2 would be a decimal. Since we know the square root of 49 can we rewrite the equation now?

Answer 2

You get 7/sqrt 2. However, you can't have a square root in the denominator. To get rid of it, multiply 7/sqrt 2 by sqrt 2/sqrt 2.

Answer 3

When you multiply a square root by itself, you get the discriminant (or just the number under it). So now, the final answer should be 7sqrt2/2.