CBSE Class 11 Mathematics Chapter 5 Complex Numbers Multiple Choice Questions with Answers. MCQ Class 11 Mathematics Complex Numbers with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Mathematics Complex Numbers MCQs with Answers to know their preparation level.
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MCQ Class 11 Mathematics Complex Numbers with Answers - Set - 5
Question 1:
The solution of √3x2 – 2 = 2x -1 are :
(a) (2, 4)
(b) (1, 4)
(c) (3, 4)
(d) (1, 3)
Correct Answer – (B)
Question 2 :
If the root of the equation (x – c) (x – b) – k = 0 are c and d, then roots of the equation (x – a) (x–d) + k are:
(a) a and c
(b) b and c
(c) a and d
(d) a and b
Correct Answer – (C)
Question 3 :
The number of real solutions of the equation (9/10) = – 3 + x – x2 is
(a) 0
(b) 1
(c) 2
(d) none of these
Correct Answer – (A)
Question 4 :
Let for a ≠ a1 ≠ 0,
f (x) = ax2 + bx + c, g(x) = a1x2 + b1 x + c1and p x = f x – g x .and p(x) = f (x)- g (x).
If p(x) = 0 only for x = -1 and p (– 2) = 2, then the value of p (2) is :
(a) 3
(b) 9
(c) 6
(d) 18
Correct Answer – (D)
Question 5 :
If a ¹ b but a2 = 5a – 3 and b2 = 5b – 3 then the equation having a/b and b/a as its roots is
(a) 3x2 – 19x + 3 = 0
(b) 3x2 + 19x – 3 = 0
(c) 3x2 – 19x – 3 = 0
(d) x2 – 5x + 3 = 0
Correct Answer – (A)
MCQ Class 11 Mathematics Complex Numbers with Answer
Question 6 :
A quadratic equation with rational coefficient can have :
(a) both roots equal and irrational
(b) one root real and other imaginary
(c) both roots real and irrational
(d) none of these
Correct Answer – (B)
Question 7 :
If (x + 1) is a factor of x4 + (p – 3)x3 – (3p – 5) x2 + (2p – 10) x + 5, then the value of p is:
(a) 2
(b) 1
(c) 3
(d) 4
Correct Answer – (D)
Question 8 :
If α,β are the roots of ax2 + bx + c = 0; α+h, β+h are the roots of px2 + qx + r = 0; and D1, D2 the respective discriminants of these equations, then D1 : D2 is equal to :
(a) a2/b2
(b) b2/a2
(c) c2/r2
(d) none of these
Correct Answer – (A)
Question 9 :
The quadratic equations x2 – 6x + a = 0 and x2 – cx + 6 = 0 have one root in common. The other roots of the first and second equations are integers in the ratio 4 : 3. Then the common root is
(a) 1
(b) 4
(c) 3
(d) 2
Correct Answer – (D)
Question 10 :
The least value of a such that the sum of the squares of the roots of the equation x2 – (a – 2) x – (a + 1) = 0 is
(a) a = – 1
(b) a = 1
(c) a = 0
(d) a = 2
Correct Answer – (B)
- NCERT Solutions Class 11 Mathematics Complex Numbers with Answers : Exercise 5.1
- NCERT Solutions Class 11 Mathematics Complex Numbers with Answers : Exercise 5.2
- NCERT Solutions Class 11 Mathematics Complex Numbers with Answers : Exercise 5.3
- NCERT Solutions Class 11 Mathematics Complex Numbers with Answers : Exercise 5 Misc
- NCERT Solutions Class 11 Mathematics Textbook download
