chittagong-divisional-2014

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Mahfuz Sobhan
Posts: 25
Joined: Sat Feb 07, 2015 5:40 pm

chittagong-divisional-2014

Unread post by Mahfuz Sobhan » Thu Aug 06, 2015 9:35 pm

If $$a$$,$$b$$ are co-prime and $$a$$ $$=$$ $$259$$, find gcd of $$a^2$$ $$-$$ $$ab$$ $$–$$ $$b^2$$ and $$a$$ $$+$$ $$b$$. :oops:

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samiul_samin
Posts: 999
Joined: Sat Dec 09, 2017 1:32 pm

Re: chittagong-divisional-2014

Unread post by samiul_samin » Thu Mar 01, 2018 6:02 pm

Let $b=1$
Then GCD($a^2-ab-b^2 $,$a+b$)$=1$
So,The answer is $\fbox 1$.

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