1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The value of $$\mathop {\lim }\limits_{x \to 0} {{1-\cos (1 - \cos x)} \over {{x^4}}}$$ is

A
$$\frac{1}{6}$$
B
$$\frac{1}{8}$$
C
$$\frac{1}{10}$$
D
$$\frac{1}{12}$$
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

Let a1, a2, ...... a40 be in AP and h1, h2, ..... h10 be in HP. If a1 = h1 = 2 and a10 = h10 = 3, then a4h7 is

A
2
B
3
C
5
D
6
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The number of terms in the expansion of $${(1 + 5\sqrt {2x} )^9} + {(1 - 5\sqrt {2x} )^9}$$ is

A
5
B
7
C
9
D
10
4
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The number of different seven-digit numbers that can be written using only the three digits 1, 2 and 3 with the condition that the digit 2 occurs twice in each number is

A
7C225
B
7p225
C
7C252
D
None of these
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