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objective Ques (278 results)
111)

यदि a + b + c = 7 और a3 + b3 + c3 – 3abc = 301 है, तब ab + bc + ca = ?

SSC CHSL 2021
A)

2

B)

–2

C)

-4

D)

3

112)

यदि x2 + 1 – 2x = 0, x > 0 है, तब x2 (x2 - 2) = _______.

SSC CHSL 2021
A)

\(\sqrt 2\)

B)

1

C)

0

D)

–1

113)

यदि \( x^2-3\sqrt2x+ 1 = 0 \) है, तब \({x^3} + ( \frac{1}{x^3})\) का मान क्या है?

SSC CHSL 2021
A)

\(30\sqrt 2\)

B)

\(30\sqrt 6\)

C)

\(45\sqrt 2\)

D)

\(15\sqrt 6\)

114)

(x - 2y) × (5x + y)3 में x3y का गुणांक है:

SSC CHSL 2021
A)

75

B)

-175

C)

250

D)

-150

115)

\({5\over4}\times2{2\over3}\div{5\over9}\)\(of\space 1{1\over5}+{2\over25}\times\)\(4{1\over6}\div{2\over7}\)\(of\space2 \frac{1}{3}\) का मान है:

SSC CHSL 2021
A)

\(1\frac{1}{2}\)

B)

\(2\frac{1}{2}\)

C)

\(5\frac{1}{2}\)

D)

\(3\frac{1}{2}\)

116)

यदि x + y + z = 13, x2 + y2 + z2 = 91 और xz = y2, तो z और x के बीच का अंतर है:

SSC CHSL 2021
A)

5

B)

9

C)

8

D)

3

117)

यदि x2 + 4y2 + 3z2\(\frac{19}{4}=2\sqrt{3}\)(x + y + z) , तो (x - 4y + 3z) का मान है:

SSC CHSL 2021
A)

\(\frac{\sqrt{3}}{2}\)

B)

\(2\sqrt{3}\)

C)

\(\sqrt{3}\)

D)

\(\frac{\sqrt{3}}{3}\)

118)

यदि (4X - 5)3 + (X - 2)3 + 27(2X - 5)3 = 9(4X - 5)(X - 2)(2X - 5) है, तो \(\left(x+\frac{3}{2}\right)\) का मान क्या होगा?

SSC CHSL 2021
A)

\(\frac{3}{2}\)

B)

\(\frac{5}{2}\)

C)

\(\frac{1}{2}\)

D)

\(\frac{7}{2}\)

119)

यदि 9a2 + 4b2 + 49c2 + 18 = 2(2b + 28c - 3a), है, तो (a + 2b - c) का मान क्या होगा?

SSC CHSL 2021
A)

\(\frac{2}{21}\)

B)

\(\frac{26}{21}\)

C)

\(\frac{11}{21}\)

D)

\(\frac{5}{21}\)

120)

यदि 9x2 - 6x + 1 = 0 है, तो 27x3 + (27x3)-1 का मान क्या होगा?

SSC CHSL 2021
A)

2

B)

4

C)

1

D)

8

showing 111 - 120 results of 278 results

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