I never really got the hang of inequalities, anyway, i've got: -11t > -40 so is this equal to: t > 3.6 or t < 3.6 ???? Thanks
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Originally Posted by curlywurlysqurly I never really got the hang of inequalities, anyway, i've got: -11t > -40 so is this equal to: t > 3.6 or t < 3.6 ???? Thanks it is t < 3.6 we flip the inequality sign around if: (1) we multiply/divide by a negative number and (2) if we take the inverse of both sides
ahhh ok, thank you very much! xx
Originally Posted by Jhevon and (2) if we take the inverse of both sides Only if both sides are of the same sign. $\displaystyle \frac{1}{3}\ <\ 2$ $\displaystyle 3\ >\ \frac{1}{2}$ but $\displaystyle -\frac{1}{3}\ <\ 2$ $\displaystyle -3\ \color{red}<\color{black}\ \frac{1}{2}$
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