Complex Number And Quadratic Equations Test Online MCQs
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# Complex Number and Quadratic Equations Test Online MCQs

 Test Name Complex Number and Quadratic Equations Test Subject Math Test Type MCQs Total Question 15 Total Marks 30 Total Time 15 Mints Test Help For All Admission Tests Prep. All Jobs and recruitment test. Math subject test prep. Quantitative Reasoning Test prep. Mathematics GK preparation.

## Math

1. The least positive integer n which will reduce (1 + i/1 - i)n to unity is:

Question 1 of 15

2. The complex number sin x + i cos 2x and cos x - i sin 2x are conjugate to each other for

Question 2 of 15

3. The number of solutions of the equation |x2| - 3 |x| + 2 = 0 is

Question 3 of 15

4. 1 + i2 + i4 + i6 + ....... + i2n is

Question 4 of 15

5. The coefficient of x in the equation x2 + px + q = 0 was taken as 17 in place of 13 and its roots we found to be -2 and -15. The roots of the original equation are

Question 5 of 15

6. Both roots of the equation
(x - b)(x - c) + (x - a)(x - c) + (x -a) (x - b) = 0

Question 6 of 15

7. If Z(3 + 4i) = 2 + 3i then the value of Z is:

Question 7 of 15

8. The argument of (1 - i √3)/(1 + i √3) is

Question 8 of 15

9. If (1 + i)x - 2i/3 + i  +  (2 - 3i)y + i/3 - i = i, then the real values of x and y given by

Question 9 of 15

10. If one root of 5x2 + 13x + k = 0 is reciprocal of the other, then k is equal to

Question 10 of 15

11. If 3 + 4i is the root of the equation
x2 + px + q = 0, then

Question 11 of 15

12. The value of p for which the difference between the roots of the equation x2 + px + 8 = 0 is 2 are

Question 12 of 15

13. If (x + iy)1/3 = a + ib, then x/a + y/b =

Question 13 of 15

14. The equation x - 2/(x - 1) = 1 - 2/x(x - 1) has

Question 14 of 15

15. The real roots of the equation x2 + 5 |x| + 4 = 0 are

Question 15 of 15

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