Question

x<2 ⇒x^2 ≥ 0, explanation! ​

Answer 1

square of any number is alwyz positive..... thus even if x<2 so the value obtained will be positive and hence x^2 is greater than or equal to 0.....

eg: if x=-2 then...

x^2 =-2*-2

=+4>0....

hence proved.... hope it helps