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

If $$|w| = 2$$, then the set of points $$z = w - {1 \over w}$$ is contained in or equal to the set of points z satisfying

A
$$Im(z) = 0$$
B
$$|Im(z)| \le 1$$
C
$$|Re(z)| \le 2$$
D
$$|z| \le 3$$
2
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
$$\frac{1}{12}$$
3
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
4
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
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