Question

please solution of this question.
$\sqrt{x {}^{2} } =$
a)
$\frac{ + }{ - } x$
b)
$x$
c)
$- x$
d)
$|x|$
​

Answer 1

Answer:

$\sqrt{x {}^{2} } = |x|$

therefore x if x>0

-x if x<0

means it always gives positive values