Question # 1

2/(x+1)(x-1) = A/x+1 + B/x-1 corresponds to

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α = b/a and β = ca

α = a/b and β = -c/a

α² + β² = 1

α = -b/a and β= c/a

The set {1, -1, i, -i}, form a group under

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addition

multiplication

subtraction

None

An m x n matrix is said to be rectangular if

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t. multiplication

Doesn't form a group

x is a member of the set {-1,0,3,5} y is a member of the set {-2,1,2,4} which is possible?

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x- y =-6

x -y < -6

x -y > 6

None

Sin-1 [-1/2] = ______.

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∏/3

-∏/6

-∏/3

∏/6

d/dx [cos x²] =________

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-2x cos x²

-2x² sin x²

x² sin x

-2x² sin x²

The fifth term of the sequence a_n = 3n - 2 is

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3

-3

13

-13

If a cone is cut by a plane perpendicular to the axis of the cone then the section is a

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Parabola

Circle

Hyperbola

Ellipse

Which of the following is solution of Tan² x = 1/3

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7π/6

5π/6

π/6

All

The multiplicative inverse of -1 in the set {1-,1} is

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40

30

50

20

The associative angle of 280^o is

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100^o

10^o

80^o

-80^o

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