\[\begin{align*}a + b + c + d + e =& 1\\ a - 2b + c -2d + e =& 2\\ a + b -3c + d -3e =& 3\\ -4a + b + c - 4d + e =& 4\\ a -5b + c + d - 5e =& 5\end{align*}\]
উপরের সমীকরণগুলো থেকে $a$ এর মান বের কর।
Find $a$ from the above set of equations.
Dhaka Secondary 2011/4
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Please don't post problems (by starting a topic) in the "Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
Re: Dhaka Secondary 2011/4
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Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi
Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi
Re: Dhaka Secondary 2011/4
good solution Mahi,
even I needed some bigger (but not so bigger) steps to solve it
even I needed some bigger (but not so bigger) steps to solve it
"Je le vois, mais je ne le crois pas!" - Georg Ferdinand Ludwig Philipp Cantor