How many solutions exist for this set of equation ? ab=1 , bc=2 , ca=8 A . 1 B . 2 C. 3 D . 6
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What have you tried so far? You've done something like solve the first and third equations for "a=", expressed "c" in terms of "b", and then solved the second equation for "c=", and... then what? Please be complete. Thank you!
Originally Posted by hooke How many solutions exist for this set of equation ? ab=1 , bc=2 , ca=8 A . 1 B . 2 C. 3 D . 6 Hint : $\displaystyle a=2$ or $\displaystyle a=-2$.
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