JEE Questions for Maths Equations And Inequalities Quiz 1 - MCQExams.com

log4 2 - log16 2 + log 2 - ... is equal to
  • e2
  • loge 2 + 1
  • loge 3 - 2
  • 1 - loge 2
x, y, z are +ve real numbers and x + y + z = 1/2 then

  • Maths-Equations and Inequalities-27547.png
  • 2)
    Maths-Equations and Inequalities-27548.png

  • Maths-Equations and Inequalities-27549.png
  • none of these

Maths-Equations and Inequalities-27032.png
  • x > y
  • x < y
  • x = y
  • None of these
The equation x + 2y + 2z = 1 and 2x + 4y + 4z = 9 have
  • Only two solutions
  • Only one solution
  • Infinite number of solutions
  • None of these.
Given that, a, b ϵ {0,1,2...9} with a + b ≠ 0 and
Maths-Equations and Inequalities-27035.png
  • 1
  • 1/2
  • 1/3
  • 1/4

Maths-Equations and Inequalities-27037.png
  • 1
  • 2
  • 3
  • 4

Maths-Equations and Inequalities-27039.png
  • 7
  • 4
  • 2
  • 1

Maths-Equations and Inequalities-27041.png
  • 1
  • 2
  • 3
  • 4

Maths-Equations and Inequalities-27043.png
  • √2 -3
  • 2 + √2
  • 2 - √2
  • 6 - 2√2

Maths-Equations and Inequalities-27045.png
  • 254
  • 192
  • 292
  • 66
  • 62
Solution of the equation
Maths-Equations and Inequalities-27047.png
  • 3
  • 2
  • 3/2
  • 2/3
The number of digits in 20 301
Maths-Equations and Inequalities-27049.png
  • 602
  • 301
  • 392
  • 391
If x, y and z are real and different and u = x2 + 4y2 + 9z2 – 6yz – 3zx – 2xy, then u is always.
  • non negative
  • zero
  • non positive
  • none of these

Maths-Equations and Inequalities-27052.png
  • are real and negative
  • have negative real parts
  • both (a) and (b)
  • none of these
If (x,y) is the solution of the following equations (2x)log2 = (3y)log3 and 3logx = 2logy , then x is equal to
  • 1/6
  • 1/3
  • 1/2
  • 6

Maths-Equations and Inequalities-27055.png
  • 1
  • 2
  • 0
  • - 1
The sequence
Maths-Equations and Inequalities-27057.png
  • a GP
  • an AP
  • a HP
  • both a GP and a HP
If log3 2, log3 (2x -and log3 (2x - 7/are in AP, then x is equal to
  • 8
  • 3
  • - 8
  • - 3
The approximate value of ∛28 is
  • 3.0037
  • 3.037
  • 3.0086
  • 3.37
Both the roots of the equation (x – b) (x – c) + (x – a) (x – c) + (x – a) (x – b) = 0 are always
  • positive
  • real
  • negative
  • none of these.
The value of log 2 20 . log2 80 - log2 5 . log2 320 is
  • 5
  • 6
  • 7
  • 8
  • 10
If log5 log5 log2 χ = 0, then the value of χ is
  • 32
  • 125
  • 625
  • 25
The number of solutions of log 4 ( χ -= log2 ( χ - 3 )
  • 3
  • 1
  • 2
  • 0

Maths-Equations and Inequalities-27065.png
  • 10
  • 2
  • – 0.01
  • none of these.
If a, b, c are distinct positive numbers each being different form 1 such that (logb a . logc a -loga a) + (loga b . logc b - logb b) + (loga c . logb c - logc c) = 0, then abc is equal to
  • 0
  • e
  • 1
  • 2
  • 3

Maths-Equations and Inequalities-27068.png
  • a = b
  • a = b/2
  • 2a = b
  • a = b/3
If ax = by = cz = dw, then the values of
Maths-Equations and Inequalities-27070.png
  • loga(bcd)
  • loga (abc)
  • logb(cda)
  • logc(dab)

Maths-Equations and Inequalities-27072.png
  • 0
  • 1
  • - 1
  • 2
The solution set of the equation
Maths-Equations and Inequalities-27074.png
  • {4, 1/4}
  • {2,1/2}
  • {1,2}
  • {8,1/8}
The value of
Maths-Equations and Inequalities-27076.png
  • 0
  • 1
  • 2
  • 100!
If a, b, c ≠ 0 and belong to the set {0,1,2,3...9}, then
Maths-Equations and Inequalities-27078.png
  • 1
  • 2
  • 3
  • 4
The value of a, so that the sum of squares of the root of the equations χ2 - (a -χ - a + 1 = 0 assume the least value, is
  • 2
  • 0
  • 3
  • 1
Let f(χ )=2χ2 + 5χ + 1. If we write f(χ ) as
f(χ ) = [a (χ +(χ —+ b (χ -(χ -+ c(χ - 1)(χ + 1)] for real numbers a,b and c, then
  • there are infinite numbers of choices for a, b and c
  • only one choice for a but infinite numbers of choices for b and c
  • exactly one choice for each of a, b and c
  • more than one but finite number of choices for a, b and c
If α and β are the roots of the equation aχ 2 + bx + c = 0 and Sn = αn + βn and a Sn+1 + b S n + c S n-1 is equal to
  • 0
  • abc
  • a + b + c
  • None of these
If the roots of the equation aχ2 + bχ + c = 0 are of the form
Maths-Equations and Inequalities-27083.png
  • b2 - 4ac
  • b2 - 2 ac
  • 2b2 - ac

  • Maths-Equations and Inequalities-27084.png
If (x2 + px +is a factor of (ax3 + bx + c), then
  • a2 + c2 = – ab
  • a2 – c2 = – ab
  • a2 – c2 = ab
  • none of these
If α , β and γ are the roots of the equation χ3 + 4χ + 2 = 0, then α3 + β3 + γ3 is equal to
  • 2
  • 6
  • - 2
  • - 6
If the product of the roots of the equation χ2 - 2 √2kχ + 2e2logk - 1 = 0 is 31, then the roots of the equation are real for k, is equal to
  • - 4
  • 1
  • 4
  • 0
Let p and q be real numbers such that p ≠ 0, p3 ≠ q and p3 ≠ - q. If α and β are non - zero complex numbers satisfying α + β = - p and α3 + β3 = q, then a quadratic equation having α/β and α/β as its roots is
  • (p3 + q)χ2 - (p3 + 2q)χ + (p3 + q ) = 0
  • (p3 + q)χ2 - (p3 - 2q)χ + (p3 + q ) = 0
  • (p3 - q)χ2 - (5p3 - 2q)χ + (p3 - q ) = 0
  • (p3 - q)χ2 - (5p3 + 2q)χ + (p3 - q ) = 0
If χ2 + pχ + q = 0 has the roots α and β, then the value of (α - β)2 is
  • p2 - 4q
  • (p2 - 4q)2
  • p2 + 4q
  • (p2 + 4q)2
If the roots of the equation χ2 - bχ + c = 0 are two consecutive integers, then b2 - 4c is equal to
  • - 1
  • 0
  • 1
  • 2
  • 3
If α and β are the roots of the quadratic equation ⋋(χ2 - χ) + χ + 5 = 0 and ⋋1, ⋋2 are two values ⋋ obtained from
Maths-Equations and Inequalities-27092.png
  • 4192
  • 4144
  • 4096
  • 4048
If 2 - r is a root of the equation aχ2 + 12χ2 + b = 0(where,a and b are real), then the value of ab is
  • 45
  • 15
  • - 15
  • - 45
  • 25
If α and β are the roots of χ2 - 2χ + 4 = 0, then thevalue of α6 + β6 is
  • 32
  • 64
  • 128
  • 256
If α ,β and γ are the roots of χ3 + 4χ + 1 = 0, then the equation, whose roots are
Maths-Equations and Inequalities-27096.png
  • χ3 - 4χ - 1 = 0
  • χ3 - 4χ + 1 = 0
  • χ3 + 4χ - 1 = 0
  • χ3 + 4χ + 1 = 0
The number of real solutions of the equation | x |2 – 3 | x | + 2 = 0 is
  • 4
  • 1
  • 3
  • 2
If α ,β and γ are such that α + β + γ = 2, α2 + β2 + γ2 = 6, α3 + β3 + γ3 = 8 then α4 + β4 + γ4 is equal to
  • 7
  • 12
  • 18
  • 36
Let the two numbers have arithmetic mean 9 and geometric mean 4. Then, these numbers are the roots of the quadratic equation
  • χ2 - 18χ - 16 = 0
  • χ2 - 18χ +16 = 0
  • χ2 + 18χ - 16 = 0
  • χ2 + 18χ + 16 = 0
If α and β are the roots of the equations χ2 - (1 + n2 )χ+ 1/2(1 + n2 + n4) = 0, then α2 + β2 is equal to
  • n2
  • - n2
  • n4
  • - n4
If α and β are the roots of χ2 - 2χ cos ∅ + 1 = 0, then the equation, whose roots are αn + βn
  • χ2 - 2 χcos n∅ - 1 = 0
  • χ2 - 2 χcos n∅ + 1 = 0
  • χ2 - 2 χsin n∅ + 1 = 0
  • χ2 + 2 χsin n∅ - 1 = 0
0:0:1


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