Question # 1

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20. 19. 18. 17= _______

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The square root of 2i - 20i is

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+-(5 - 2i)

+-(5 + 2i)

(5 - 2i)

None of these

The intercepts of the plane 2x - 3y + 4z = 12 on the co-ordinate axes are given by

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2, -3, 4

6, -4, -3

6, -4, 3

3, -2, 1.5

The distance of a moving particle at any instant t is x = 3t2 +1 then velocity of particle at t = 10 is

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50 cm/sec

60 cm/sec

61 cm/sec

None of these

If x = 1/x for x ∈ R then the value of x is

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±1

0

2

4

In an A.P,a +(n-a)d is

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1st term

General term

Last term

None of these

If 0 = {1,3,5.......}, then n (0) =

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99

odd integers

Even numbers

Infinite

Which of the following is a vector.

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work

time

density

electric field

The straight lines represented by the equation ax2+ 2hxy +by2 =0 intersects at

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(1,1)

(0,1)

(1,0)

(0,0)

If the exponent in the binomial expansion is 6, then the middle term is

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2nd

3rd

4th

5th

If f(x) = tan x then f(0) is

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0

1

1/2

Optimal solution is found by evaluation the objective function at

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All point of feasible region

Corner point

Origin

None

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The 8th term of (1+2x) ^-1/2is

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-221/16 x⁷

-225/18 x⁷

-407/9 x³

-429/16 x⁷

The measure of the acute angle between the lines represented by x2 -xy -6y2 =0 is

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120°

30°

130°

45°

The fixed point from which all the points of a circle are equidistant is called the

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chord of the circle

centre of the circle

diameter of the circle

radius of the circle

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none of these

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A

B

A'

None of these

∀a,b ε R, ab = be is a

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplicative identity

The third term in the expansion of (1+2x) is

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-2x2

-4x2

2x2

4x2

If |a x b|2 + (a,b)2 = _____

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|a|2 + |b|2

|a|2- |b|2

|a|2|b|2

None

If a is any real number and a = a is called

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symmetric property

Trichotomy Properties

Transitive Property

Reflexive Properties

Cos-1 (-x) =

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-x

1/x

tan-1 x

π-cos-1 x

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If m and n be two scalars, then (m+n) g =

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0

m+n

m▁a+n▁a

ma - m▁a

if A = (x/x€ Q˄ 0 < x < 1}, the A is

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Infinite set

Finite set

Set of rational numbers

Set of real numbers

If A and B are two sets then intersection of A and B is denoted by

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