Question

PLEASE HELP ASAP!!!

z² = 1

√__ = √__

z = ± __

The solutions are ___ and ___.​

Answer 1

`z^2=1\\\text{Adding square roots on both sides,}\\√(z^2)=\sqrt1\\\text{or,\ }z=\pm 1\\`

`\text{The solutions are 1 and -1.}`