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chittagong-divisional-2014

Posted: Thu Aug 06, 2015 9:35 pm
by Mahfuz Sobhan
If $$a$$,$$b$$ are co-prime and $$a$$ $$=$$ $$259$$, find gcd of $$a^2$$ $$-$$ $$ab$$ $$–$$ $$b^2$$ and $$a$$ $$+$$ $$b$$. :oops:

Re: chittagong-divisional-2014

Posted: Thu Mar 01, 2018 6:02 pm
by samiul_samin
Let $b=1$
Then GCD($a^2-ab-b^2 $,$a+b$)$=1$
So,The answer is $\fbox 1$.