*Determine whether the following assertions are true or false. if true, prove the result, and if false, give a counter example 3. If b/(a^2-1) then b/(a^4-1).
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$\displaystyle a^4-1=(a^2-1)(a^2+1)$
bruno can u pls elaborate it. i don't get it..is it false or true? pls
If $\displaystyle m|a$, does $\displaystyle m|ab$ for every $\displaystyle b$? What does "$\displaystyle m|a$" mean?
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