i have no idea what these mean:
http://img22.imageshack.us/img22/8144/assignment2.jpg
but does anyone know how to solve it? if so could i please have the answers and how you solved it?
thankyou.
i have no idea what these mean:
http://img22.imageshack.us/img22/8144/assignment2.jpg
but does anyone know how to solve it? if so could i please have the answers and how you solved it?
thankyou.
5(i) asks for the truth value of:
$\displaystyle \forall x: \ 3-x^2 \le 9$
Now $\displaystyle x^2$ is always greater than or equal zero and has a minimum when $\displaystyle x=0$, so $\displaystyle 3-x^2$ has a maximum when $\displaystyle x=0$ and there it takes the value $\displaystyle 3 \le 9$ so the statement is true.
CB