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Online Tests

11th Class Part 1 Mathematics Test Online MCQs With Answers

Question # 1

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Question # 2

The identity element with respect to addition is:

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0

1

-1

0 and 1

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Question # 3

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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Question # 4

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c = 0

b = 0, c = 0

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Question # 5

If A = [a_ij], B = [b_ij] and AB = 0 then:

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A = 0

B = 0

either A = 0 or B = 0

A & B not necessarily zero

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Question # 6

If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

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Question # 7

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none of these

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Question # 8

In binomial expansion (a+b)ⁿ, n is positive integer the sum of coefficients equals:

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none of these

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Question # 9

If 2s = a + b + c, where a, b, c are the sides of a triangle ABC, then area of triangle ABC is given by:

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Question # 10

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3×1

1×3

3×3

1×1

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Question # 11

Multiplicative inverse of -i is:

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i

-i

1

-1

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Question # 12

If f(x) = arccos x, then:

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Question # 13

Number of terms in the expansion of (x+y)⁶ is:

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7

6

2

8

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Question # 14

Solution set of the simultaneous equations : x + y = 1, x - y = 1 is:

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{(0,0)}

{(1,0)}

{(0,1)}

{(1,1)}

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Question # 15

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

none of these

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Question # 16

If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

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Question # 17

y = sin^-1 x if and only if x = sin y, where:

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Question # 18

A dice is rolled, the probability of getting a number which is even or greater than 4 is:

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none of these

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Question # 19

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Question # 20

Factors of x² + y² are:

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(x + iy) (x - iy)

(x + y) (x - y)

(x + y) (x + y)

none

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Question # 21

The period of cosec 3x is:

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