Question # 1

In Binomial Expansion the coefficients of the terms equidistant from beginning and end of the expansion are

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Zero

Same

Equal to preceding term

Equal to following term

The common difference of the sequence 7,4,1, .......... is

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1

-3

5

0

Which is an explicit function

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All

If 1 + Cos x = 0, then x =

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An irrational number

Whole number

A positive integer

A rational number

The length of rectangle is twice as much as its breadth. If the perimeter is 120 cm, the length of the rectangle is

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10 cm

20 cm

30 cm

40 cm

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30°

45°

60°

90°

If the sum of the roots of the equation ax²- 2x + 2a = 0 is equal to their product, then the value of a is

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1

2

3

4

a + x is

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A trinomial

A binomial

A moomial

An equation

The set of complex numbers forms a group under the binary operation of

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Addition

Multiplication

Division

Subtraction

In the expansion of (a + b)ⁿin every term the sum of the exponents of a and b is

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n

n + 1

2n - 1

2n + 1

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None of these

If -1 < x < 0, which of the following statements must be true?

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x < x²< x³

x < x³< x²

x²< x³< x

x²< x < x³

If A and B are matrices such that AB=BA=I then

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

. A and B are singular matrices

A and B are equal

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1

0

-2

3

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None of these

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