1
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
For positive integer n, n3 + 2n is always divisible by
A
3
B
7
C
5
D
6
2
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
In the expansion of (x $$-$$ 1) (x $$-$$ 2) .... (x $$-$$ 18), the coefficient of x17 is
A
684
B
$$-$$ 171
C
171
D
$$-$$ 342
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