Question # 1

A class contains nine boys and three girls, in how many ways can the teacher choose a committee of four?

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460

495

272

60

The principal value of sin^-1(-1/2)

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π/3

π/4

π/6

-π/6

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

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2 x 2

2 x 3

3 x 2

3 x 3

x = -1 is in the solution of the inequality

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x + 5 < 0

2x + 3 < 0

x > 0

2x + 3 > 0

The middle term of [1/x-x]¹⁰is

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-152

-252

371

-421

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

The periods of the function f(x) = x[x] is

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1

2

Non periodic

None of these

A matrix with a single row is called a

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Column matrix

Row matrix

Null matrix

Identity matrix

For each natural number n, n (n+1) is

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an even

an odd

multiple of 3

Irrational

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y + 1 = Ae^x

y + 1 = Axe^x

xe^x= C

y + xe^x= C

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