Question # 1

The Principal value of sin-1 (-1/1/2)

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π/2

-π/2

π

-π

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Closure law of addition

Closure law of multiplication

Commutative law of addition

Commutative law of multiplication

Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is

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k = 9

k = ±9

k=-9

k=11

Which of the following is a scalar.

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electric field

magnetic field

weight

mass

The set of all antiderivaties of f(= ∫f(x)dx) is the

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Definite integral

Indefinite integral

Integral

Area

√-1 b=

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b

2

2b

None of these

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1

-1

How many terms of the A.P 3,6,9,12,15...........must be taken to make the sum 108

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8

6

7

36

π is ______

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A complex number

A rational number

A natural number

An irrational number

In R, the multiplicative identity is

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0

1

-1

None

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Which of the following is the equation of a line with slope 0 and passing through the point (4,3)

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X =4

X = -4

Y = 3

Y = -6

How many elements are in the sample space of two rolling dies

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6

12

18

36

If the sum of the roots of (a + 1)x² + (2a + 3)x + (3a + 4) = 0 is -1, then product of the roots is

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Commutative law w.r.t multiplication

Associative law w.r.t addition

Distributive law w.r.t addition

Multiplication of a scalar with the matrix

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