Question

If
${x}^{2} - {a}^{2} \geqslant 0$
then
$x \geqslant a$
or
$x \leqslant - a$
prove
plzzzzzzz its very imp​

Answer 1

x² - a² ≥ 0

x² ≥ a²

√x² ≥ √a²  ....................................(taking square root both sides)

x ≥ a