Question # 1

a.a^-1= a^-1.a = 1 is a

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Commutative law of multiplication

Multiplication identity

Associative law of multiplication

Multiplication inverse

The equation of vertical asymptotes of y = cos ecx is

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x = 0

y = 0

x =∞

y =∞

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3

2

8

0

One second is denoted by

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1⁰

1'

1"

1 rad

The general value ofθsatisfying the equation 2 sin²θ- 3 sinθ-2 = 0 is

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The centroid of a triangle divides each median in the ratio

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2 : 1

3 : 1

3 : 2

1 : 1

Through how many radians does the minute hand of a clock turn in one hour

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Corner point of the system x - y≤ 2,x + y≤ 4,2x -y≤ 6,x≥ 0,y≥ 0

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(1,4)

(4,2)

(3,1)

(4,1)

An equation of the form ax + by = k is homogeneous linear equation when

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b = 0, a = 0

a = 0,b ≠ 0

b = -0,a≠ 0

a≠ 0,b≠ 0, k = 0

Φ set is the _______ of all sets

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Subset

Union

Universal

Intersection

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Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

1+3x+6x2 +10x3 +....=

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(1+x)-3

(1-x)-2

(1-x)-3

(1+x)-2

A chord passing through the centre of the circle is called

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the secant of the circle

the tangent of the circle

the arc of the circle

the diameter of the circle

For any two sets A and, A ⊆ B if

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x ∈ A ⇒ x ∈ B

x ∉ A ⇒ x ∉ B

x ∈ A ⇒ x ∉ B

None of these

cos(3π/2 +θ) = _____;

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sinθ

cosθ

-sinθ

-cosθ

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Biconditional

Implication

Antecedent

Hypothesis

Sum of all the four forth roots of unity is

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1

-1

i

0

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A

A'

U

A A'

tan(3π/2 +θ)=______;

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tanθ

cotθ

-tanθ

-cotθ

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A vector with magnitude one is called

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constant vector

unit vector

zero vector

null vector

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(a,b) +(-a,-b) =

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(0,0)

(a,b)

(-a,-b)

(1,1)

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

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The proposition S(n) for any n∈ N is only true if k∈ N and

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S(k +1) is true

S(1) is true and S(k+1) is true whenever S (k) is true

S(k+1) is true whenever S (k) is true

S(k) is true

The 5th term of (3a-2b)^-1is

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77b²/a⁵

16b²/243 a⁵

17b⁴/43a⁵

25b³/43a⁵

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