Question # 1

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The set of complex numbers forms a group under the binary operation of

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Addition

none of these

Division

Subtraction

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4

6

8

10

If distance between (a,2) and (0,0) is 2 then a = _______

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0

2

4

n(n-1)(2n-1), for all natural numbers n, is divisible by

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12

6

2

18

Domain of y = scs x is

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All real numbers except π/2 + n*π

R

All negative integers

None of these

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Which of the following is a vector.

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work

time

density

electric field

The line y= 4x +c touches the hyperbola x2- y2 =1 if and only if

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c =±√2

c =0

c=±√17

c=±√15

The sum of the coefficient in the expansion of (a + x)⁵is

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32

16

8

5

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2^x

2^xIn x

2^xIn 2

(1, 2) is in the solution of the inequality

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2x + y > 8

2x + y < 6

2x - y > 1

2x + 3y < 2

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

The multiplicative inverse of 1 is

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1

-1

0

Does not exist

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The points (x, y) which satisfy a linear inequality in two variables x and y from its

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domain

range

solution

none of these

The angle AOP which the ray from an observer's eye at O to an object at P at a lower level makes with horizontal ray OA through O is called the

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Angle of depression

Angle of elevation

Acute angle

Obtuse angle

IfΔABC is right, law of cosine reduce to

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Law of sine

Law of tangent

Phthogorous theorem

Hero's formula

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120

5

4

6

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[0, 0, 0]

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

The central angle of an arc of a circle whose length is equal to the radius of the circle is called one

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Degree

Second

Minute

Radian

π is ______

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A complex number

A rational number

A natural number

An irrational number

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The set {x +iy / x, y ∈ Q} forms a group under the binary operation of

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Addition

Multiplication

Division

Both addition and multiplication

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Point (2,0) lies on trigonometric function f(x)=______;

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sinx

cosx

tanx

secx

A sequence is a functions whose domain is a subset of the set of

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Natural numbers

Real numbers

Whole numbers

Rational numbers

The number of ways of arranging the letter AAAAA BBB CCC D EE F in a row when no two C's are together is

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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

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