Q161.The roots of the equation log4 (x2 –6x + 24) = 2 are-
Correct answer: 2, 4
Q162.The sum of the roots of the equation x2 – 4 |x - 2| – 4x + 8 = 0 is
Correct answer: 8
Q163.If α, β, γ are the roots of the equation x3 + px2 + qx + r = 0, then α2 β2 + α2 γ2 + β2 γ2 is equal to
Correct answer: q2/– 2pr
Q164.If one zero of the third degree polynomial x3 + ax2 + bx + c is –1, then the product of other two zeroes is
Correct answer: b – a + 1
Q165.If x1 and x2 are roots of x2 – 2x + 4 = 0, then the value of 3 3 1 2 x + x is equal to
Correct answer: –16
EnglishUP TGT 2005, 2021 UPPCS (Pre) 2004
Q166.The number of real solutions of the equation 2 x – 3 x + 2 = 0 is
Correct answer: 4
EnglishUPPSC Ashram Paddhati 2021
Q167.The roots of the equation log9(x2 – 16x + 141) = 2 are
Correct answer: 6, 10
EnglishUPPSC Ashram Paddhati 2021
Q168.The harmonic mean of the roots of the equation ax2 – bx + c = 0 is
Correct answer: 2c/b
EnglishUKPSC Lecturer (Mains) 2020
Q169.One of the solutions of the system of inequalities: 2x+ y > 3 and x – 2y ≤– 1 is:
Correct answer: (0,5)
EnglishUKPSC Lecturer (Mains) 2020
Q170.If ≠ | x + 3 | +x > 1,x –2 x + 2, then x lies in
Correct answer: (–5, –2) ∪ (–1, ∞)
EnglishUKPSC Lecturer (Mains) 2020
Q171.The solution set of the inequality 2x + 4 5 x – 1 ≥ is
Correct answer: (1, 3]
EnglishUKPSC Lecturer (Mains) 2020
Q172.Suppose that |3x| + |2y|≤1. Then the maximum value of 9x+ 4y is:
Correct answer: 3
Q173.If x = 3 –, 5 then x = 2 + 3x - 2
Correct answer: 1/5
EnglishDSSSB TGT 04-09-2021 Shift-I (Male)
Q174.What will be the value of x3 + y3 + z3, if x + y + z = 0?
Correct answer: 3xyz
Q175.3 x 100, 2.56 x = then 'x' is equal to:
Correct answer: 64
EnglishUKPSC GIC 2018 JDD-75-PGT TIER-II X-15, 28.06.2015 DSSSB TGT (Section B) 28-12-2014 Section B PGT TIER-I 31.11.2014
Q176.If x + 3 10 ≥ then x is
Correct answer: x∈ (–∞, –13]∪[ 7, ∞)
EnglishUKPSC Lecturer (Mains) 2020
Q177.The solution set of inequality 3(2) 5(2) 5 3 − − ≥ x x is:
Correct answer: [2, ∞)
EnglishUKPSC Lecturer (Mains) 2020
Q178.The solution set of inequality- 2x + 21–x – 3 < 0 in R is:
Correct answer: (0,1)
EnglishUKPSC Lecturer (Mains) 2020
Q179.Solution set of inequality 2 |x+ 1|> x+ 4
Correct answer: (–∞,–2) ∪ (2, ∞)
EnglishUKPSC Lecturer (Mains) 2020
Q180.The solution set of the inequality () 2 5 2 3 13 + ≥ x x x is:
Correct answer: (– ∞,2]