1
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

using binomial theorem, the value of (0.999)3 correct to 3 decimal places is

A
0.999
B
0.998
C
0.997
D
0.995
2
WB JEE 2010
MCQ (Single Correct Answer)
+1
-0.25

$$({2^{3n}} - 1)$$ will be divisible by $$(\forall n \in N)$$

A
25
B
8
C
7
D
3
3
WB JEE 2010
MCQ (Single Correct Answer)
+1
-0.25

If in the expansion (a $$-$$ 2b)n, the sum of the 5th and 6th term is zero, then the value of $${a \over b}$$ is

A
$${{n - 4} \over 5}$$
B
$${{2(n - 4)} \over 5}$$
C
$${5 \over {n - 4}}$$
D
$${5 \over {2(n - 4)}}$$
4
WB JEE 2010
MCQ (Single Correct Answer)
+1
-0.25

Sum of the last 30 coefficients in the expansion of (1 + x)59, when expanded in ascending powers of x is

A
259
B
258
C
230
D
229
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