# Math Help - computing a power

1. ## computing a power

Hello,,, simple question here...

but when one is finding the roots of say (1+i)^(1/2)
u have +2pi(n)
somewhere in there

but when one is squaring say the same thing
you dont include + 2pi(n)....

why not?

2. Originally Posted by mpl06c
but when one is finding the roots of say (1+i)^(1/2)
u have +2pi(n)
somewhere in there but when one is squaring say the same thing
you dont include + 2pi(n)....why not?
There two square roots of any nonzero complex number.
But there is exactly one square of any complex number.