Question

The solution of the equation $\sqrt{x^2-2x+1}=0$ is

• A. $-1$
• B. $1$
• C. Both $-1$ and $1$
• D. $0$

Answer 1

The correct option is B $1$

$\sqrt{x^2-2x+1}=0\Rightarrow \sqrt{(x-1{)}^2}=0\Rightarrow |x-1|=0\therefore x=1$