Question

How does √3 √3 equal 3 since both square roots are undefined?

Answer 1

how are they undefined?

Answer 2

I thought √3 is undefined

Answer 3

and so is the other one

Answer 4

the square root of 3 is some number (roughly 1.7) so it's definitely defined

Answer 5

Oh okay

Answer 6

But how do they equal 3?

Answer 7

\[\Large \sqrt{3}*\sqrt{3} = (\sqrt{3})^2 = 3\]

the square and square root cancel each other out

Answer 8

Aaaah I see

Answer 9

Another way

\[\Large \sqrt{3}*\sqrt{3} = \sqrt{3*3} = \sqrt{9} = 3\]

Answer 10

thanks for the help :)

Answer 11

np