11th Class ICS Mathematics Test Online With Answers

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11th Class ICS Mathematics Test Online

Sr. # Questions Answers Choice
1 Sum of roots of ax2 + bx + c = 0 is equal to product of roots only if: a+c=0 b+c=0 a+b=0 a+b+c=0
2 Four fourth roots of 625 are: ±5,±5i ±5,±25i ±25,±25i none of these
3 none of these
4 4 16 8 64
5 1 0 2 3
6 i
7 If one root of 2x2 + ax + 6 = 0 is 2 then the value of a is: 7 -7
8 25 20 40 2a + 2b + 2c
9 If A is a square matrix order 3 × 3 the |kA| equals: k |A| k<sup>2</sup>|A| k<sup>3</sup> |A| k<sup>4</sup> |A|
10 If each element of a 3 × 3 matrix A is multiplied by 3, then the determinant of the resulting matrix is: |A|<sup>3</sup> 27|A| 3|A| 9|A|
11 For a square matrix A, |A| equals: A<sup>t</sup> |A<sup>t</sup>| -|A<sup>t</sup>| -A<sup>t</sup>
12 If A = [aij], B = [bij] and AB = 0 then: A = 0 B = 0 either A = 0 or B = 0 A &amp; B not necessarily zero
13 If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is: r - s r × s r + s none of these
14 S = {1, -1, 2, -2} is a group under: multiplication subtraction addition none of these
15 equal sets null sets overlapping sets subsets
16 A B
17 If sets A and B are equal then:
18 If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ? W {0} none of these
19
20 {1, 2, 3} {5, 6, 7} {4}
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