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QUESTION
Q
What is the number of distinct terms in the expansion of (a + b + c)20 ?
Solution
Number of terms in the given expansion is nothing but the non-negative integral solutions of the equation
a + b +...
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Study the following information and answer the questions. Eight friends-A, B, C, D, E, F, G and H-are sitting around a circular table not necessarily in the same order. Three of them are facing outward while five are facing towards the centre. There are equal number of males and females in the group. C is facing the centre. E…
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