1
WB JEE 2011
MCQ (Single Correct Answer)
+1
-0.25

If n > 1 is an integer and x $$\ne$$ 0, then (1 + x)n $$-$$ nx $$-$$ 1 is divisible by

A
nx3
B
n3x
C
x
D
nx
2
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Let $$P(n) = {3^{2n + 1}} + {2^{n + 2}}$$ where $$n \in N$$. Then

A
P(n) is not divisible by any prime integer.
B
there exists prime integer which divides P(n).
C
P(n) is divisible by 5 for all $$n \in N$$.
D
P(n) is divisible by 3 for all $$n \in N$$.
3
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25
Change Language

The number of zeros at the end of $$\left| \!{\underline {\, {100} \,}} \right. $$ is

A
21
B
22
C
23
D
24
4
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
For x$$\in$$R, x $$\ne$$ $$-$$1, if $${(1 + x)^{2016}} + x{(1 + x)^{2015}} + {x^2}{(1 + x)^{2014}} + ..... + {x^{2016}} = \sum\limits_{i = 0}^{2016} {{a_i}\,.\,{x^i}} $$, then a17 is equal to
A
$${{2016!} \over {17!1999!}}$$
B
$${{2016!} \over {16!}}$$
C
$${{2017!} \over {2000!}}$$
D
$${{2017!} \over {17!2000!}}$$
WB JEE Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12