Question # 1

The coefficient of x¹⁰in the expansion (x³+3/x²)¹⁰is

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1700

17023

17027

17010

The product of the four fourth roots of unity is

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0

1

-1

None of these

4/√49 is a

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Irrational Number

Prime Number

Rational number

Whole number

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Find a if 1 is a root of the equation x²+ ax + 2 = 0

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3

-3

2

0

Period of cos 2x is ______

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The square root of 2i - 20i is

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±(5 - 2i)

±(5+ 2i)

(5 - 2i)

None of these

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The equation x2+ y2- 8x+ 6y+ 25= 0 represents

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A circle

A pair of straight lines

A point

None of these

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6, -12, -18

-6, 4, 9

-6, -4, -9

-6, 12, 18

If |αi + (α+1)j +2k| =3 then value of α is

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1,2

-1,-2

1,-2

-1,2

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The law of consines is

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1

0

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square root function

identity function

linear function

quadratic function

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0

-1

1/2

1

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The positive real number which is the measure of the length of a vector is called the

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Unit vector

Modulus

Inverse

None of these

The next term of the sequence 1, 2, 4, 7, 11, ..... is.

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15

16

17

18

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cos(π/2-θ) = ________;

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cosθ

sinθ

-cosθ

-sinθ

The familiar plane curves, namely circle, ellipse, parabola and hyperbola are called:

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cones

conics

nappes

apex

For all points (x,y) in first quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

The transport of a rectangular matrix is a

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Square matrix

Rectangular matrix

Row matrix

Column matrix

One second is denoted by

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1⁰

1'

1"

1 rad

The value of cos(cos-1 1/2) is

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1/2

√3/2

-1/2

1/√2

If ax²+ bx + x = 0 is satisfied by every value of x, then

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b = 0, c = 0

c = 0

b = 0

a = b = c = 0

If A is singular then |A| = ______

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1

0

2

None of these

If a2 = b2 then

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a = b

a+b= 1

|a+b| =0

None

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