Hi, Could someone please confim if [17.5]18 is the correct answer to the question as it seems wrong. Thanks
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Hello, Originally Posted by 1234567 Hi, Could someone please confim if [17.5]18 is the correct answer to the question as it seems wrong. Thanks What does $\displaystyle [17.5]_{18}$ mean ??? You can see that 7 and 13 are inverse modulo 18. So the expression is now $\displaystyle 13 \times 2+7 \times 7=[75]_{18}=[3]_{18}$
Originally Posted by Moo Hello, What does $\displaystyle [17.5]_{18}$ mean ??? You can see that 7 and 13 are inverse modulo 18. So the expression is now $\displaystyle 13 \times 2+7 \times 7=[75]_{18}=[3]_{18}$ Yh i made a mistake when caluculating. I just done the working out again and got the same answers. Thanks for the help.
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