Question # 1

No. of ways of solving a quadratic equation:

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1

3

2

4

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x = 0, y = 0

r₂ =

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The period of cosec 3x is:

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Modulus of 15 i + 20 is:

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20

15

25

none of the above

In any triangle ABC, law of tangents is:

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all of these

If the matrices A & B have the orders 2×3 and 5×2 then order BA is:

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3×5

5×2

2×2

none

Which one is exponential equation:

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ax² + bx + c = 0

ax + b = 0

2^x = 16

cos (2sin^-1 x) =

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1- 2x²

1 + 2x²

2x²- 1

x²- 1

When a rational fraction is separated into partial fractions, the result is:

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If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

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1

0

2

3

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scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

The real part of the complex number a + bi is:

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b

-b

a

-a

Zero cannot be a term of:

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A.P and G.P

G.P and H.P

A.P and H.P

only H.P

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sec (2π + Θ), where Θ is a basic angle will have terminal side in:

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quad. I

quad. II

quad. III

quad. IV

One of the roots of the equation 3x2 + 2x + k = 0 is the reciprocal of the other, then k = ...............:

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3

2

1

4

In triangle ABC, if α = 90° then:

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none of these

In a simultaneous throw of two dice, The probability of getting sum 3 or 11 is:

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none

Conjugate of a- i b is:

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b + ia

-a + ib

-a - ib

a + ib

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11th Class Part 1 Mathematics Test Online MCQs With Answers

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