EnglishDSSSB 23 SEP 2018 (9 AM-11 AM)
Q221.For any real x≠0, which of the inequality is true?
Correct answer: 1 x 2 x + ≥
EnglishDSSSB 23 SEP 2018 (9 AM-11 AM)
Q222.If x(≠1) is any real number, then x3 +1>x2 +x if:
Correct answer: x > –1
EnglishDSSSB 23 SEP 2018 (9 AM-11 AM)
Q223.The real values of x satisfying the inequality: (())) ((()) 2 10 10 log x 3 log x 1 x 1000 − + > > are:
Correct answer: x> 1000
Q224.The number of real solutions of the equation 2 x 5 x 4 0 + + = + + = + + = + + = is
Correct answer: 0
Q225.The number of solutions of (())) ((()) 4 2 log x 1 log x 3 − = − − = − − = − − = − is
Correct answer: 2
Q226.If ((()) n 2 2 2n 0 1 2 2n 1 x x a a x a x.... a x − + = + + + + − + = + + + + − + = + + + + − + = + + + + then ((()) 0 2 4 2n a a a.... a + + + + + + + + + + + + + + + + is equal to
Correct answer: n 3 1 2 +
Q227.If the roots of the equation (())) ((()) 2 a b x c a x (b c) 0 − + − + − = − + − + − = − + − + − = − + − + − = are equal then a, b, c are in
Correct answer: arithmetic progression
Q228.For the equation |x2 |+|x|–6=0
Correct answer: The product of roots is –4
Q229.The value of p for which the sum of the squares of the roots of the equation x2 –(p–2)x–p+1=0 is minimum, will be
Correct answer: 1
Q230.The condition that the equations ax2 +bx+c=0, a' x2 +b'x+c' = 0 have a common root is
Correct answer: () ()() 2 ca ' c'a bc' b'c ab' a 'b − = − −
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q231.The equation 2 x 5 x 6 0 has
Correct answer: Four real roots
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q232.The equation x 4 4 has
Correct answer: No solution
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q233.An odd degree polynomial equation has–
Correct answer: Atleast one real root
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q234.One root of the equation tan x = x is–
Correct answer: x 0
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q235.The real root of the equation 3 x 6x 9 0 is–
Correct answer: –3
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q236.If roots of the equation 2 3x 4x 7 0 are, then value of 1 1 is equal to–
Correct answer: 4/7
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q237.The roots of the equation 2 ax bx c 0 are, then equation whose roots are 1 1, is–
Correct answer: 2/cy by a 0
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q238.The solution set of 2x 3 5 is–
Correct answer: (, 4) (1,)
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q239.If the roots of the quadratic equation 2 (4 m)x (m 1)x 1 0 + + + + = + + + + = + + + + = + + + + = are equal then the value of m is–
Correct answer: 5
EnglishDSSSB TGT (SECTION-B) 28 DEC 2014
Q240.If (x–1) is a factor of 5 3 2 x 4x 2x 3x K 0, then K is–
Correct answer: 4