Question

If x^2 = a and a > 0. what is x?

Answer 1

$\\ \sf\longmapsto x^2=a$

$\\ \sf\longmapsto x=\sqrt{a}$

Now if a be 1,2,3,4....

$\\ \sf\longmapsto x=\sqrt{1}=1$

$\\ \sf\longmapsto x=\sqrt{2}$

$\\ \sf\longmapsto x=\sqrt{3}$

$\\ \sf\longmapsto x=\sqrt{4}=2$

And so on