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objective Ques (278 results)
71)

If 3u + 2v = 7 and uv = 2, then the value of (3u - 2v) is:

SSC CHSL 2021
A)

1

B)

2

C)

0

D)

5

72)

If 2x2 - 6x = 1, then  x2 + \(\frac{1}{4x^2}\)=?

SSC CHSL 2021
A)

8

B)

9

C)

10

D)

12

73)

If x- 142x+ 1 = 0, then the value of  \(x^3+1/x^3\)  is

SSC CHSL 2021
A)

1962

B)

1952

C)

1692

D)

1592

74)

If a2 + b2 = 25, x2 + y2 = 17 and ax + by = 8, then what is the value of (ay - bx)?

SSC CHSL 2021
A)

25

B)

33

C)

19

D)

21

75)

Given that (2x + y)3 - (x + 2y)3 = (x - y) [A(x2 + y2) + Bxy], the value of (2A - B) is:

SSC CHSL 2021
A)

1

B)

7

C)

0

D)

6

76)

If then \( \rm k - \frac{3}{k} = 5\) what is the value of \( \rm k^2 + \frac{9}{k^2} \)?

SSC CHSL 2021
A)

31

B)

11

C)

25

D)

19

77)

If x3 + y3 = 468 and x + y = 12, then the value of x4 + y4 will be:

SSC CHSL 2021
A)

2036

B)

3025

C)

3620

D)

3026

78)

If a2 + b2 + c2 + 170 = 2 (8a + 5b - 9c), then the value of  \(\rm \sqrt {4a + 8b -c}\) will be:

SSC CHSL 2021
A)

8

B)

12

C)

9

D)

15

79)

If x + y + z = 5,  \(\rm \frac{1}{x}+\frac{1}{y}+\frac{1}{z}=0\) , xyz = 12, and x3 + y3 + z3 = 151 then the value of (x2 + y2 + z2) is:

SSC CHSL 2021
A)

23

B)

21

C)

24

D)

22

80)

If x + y = 5 and  \(\rm \frac{1}{x}+\frac{1}{y}=\frac{20}{9} \), then the value of (x3 + y3) will be:

SSC CHSL 2021
A)

\(\rm \frac{365}{4}\)

B)

\(\rm \frac{635}{8}\)

C)

\(\rm \frac{635}{4}\)

D)

\(\rm \frac{205}{4}\)

showing 71 - 80 results of 278 results

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