Question # 1

u,v,wand u x (v.w) are

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Equal

Parallel

Additive immense of each other

Meaningless

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-1

1

2

-2

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A

-A

A^t

A^-

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15/23

7/15

7/8

15/7

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A = B iff

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All elements of A also the elements of B

A and B should be singleton

A and B have the same number of elements

If both have the same element

The set of all positive even integers is

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Not a group

A group w.r.t. subtraction

A group w.r.t. division

A group w.r.t. multiplication

The law of tangents is ______

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The constant distance of all points of the circle from its centre is called the

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radius of the circle

secant of the circle

chord of the circle

diameter of the circle

Some of two real numbers is also a real number , this property is called:

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Commutative property w.r.t addition

Closure property w.r.t. addition

Associative property w.r.t. addition

Distributive property w.r.t addition

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0

abc

1/abc

None of these

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100x ⁹⁹

100x ¹⁰¹

-99x ⁹⁹

-100x ¹⁰¹

30° = ______

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The real number system contains.

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Positive Numbers

Negative numbers

Zero

(option a, b and c)

The period of cosec 10x is _______

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5

20

9

4

A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is 60° and when he retires 40 meters away from the tree the angle of elevation becomes 30°. The breadth of the river is

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40 m

30 m

20 m

60 m

The period of|sin⁡2x| is

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π/2

-π/2

π

π/3

The number of x-intercepts of y= sin x in his period

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0

1

2

3

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

a + x is ______

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A trinomial

A binomial

A monomial

None of these

For any set X, X∪X is

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X

X'

Φ

Universal Set

sin (sin^-1(1/2))=

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0

2

∞

1/2

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-10

10/7

-10/7

-7/10

A quadratic equation has two

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roots

degree

variables

constants

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-cosec²x

-sec²x

- cosec x cot x

cosec x

Area of the triangle whose vertices are (2,3),(0,1),(0,0) is

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6

2

4

1

tan^-1(1/4) + tan^-1(2/9) is equal to

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1/2 cos^-1(3/5)

1/2 sin^-1(3/5)

1/2 tan^-1(3/5)

tan^-11/2

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

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degree

radian

minute

second

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