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GATE CSE & IT · Combinatorics · 1993-2016
3
PYQs
33%
keyed
1
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3
years appeared
Study anchor
Rosen — Discrete Mathematics and Its Applications
Discrete structures, counting, relations, graph theory
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Consider the recurrence relation $${a_1} = 8,\,{a_n} = 6{n^2} + 2n + {a_{n - 1}}.$$ Let $${a_{99}} = K \times {10^4}.$$ The value of $$K$$ is ____________.
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2015 PYQ
$$\sum\limits_{x = 1}^{99} {{1 \over {x\left( {x + 1} \right)}}} $$ = _____________.
easy
1993 PYQ
$$\sum\limits_{1 \le k \le n} {O(n)} $$ where O(n) stands for order n is:
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