Question # 1

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

The Domain of f(x) = log x is

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[0,∞]

(0, ∞)

[0,∞[

[∞ ,∞]

∫cot (ax + b) dx =

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1/a log |sin (ax + b)| +c

1/a log |cos ax + b)

1/b |sin (ax + b)|

1/a log |sin (bx + a)|

P(x) = 2x⁴ -3x³ +2x-1 is polynomial of degree

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1

2

3

4

x-1/(x+2)(x-2) =

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4/3(x-4) -1/3(x-1)

3/4(x+2) + 1/4(x-2)

2/3(x-2) - 4/3(x+2)

3/x - 2/x+1

The number of diagonals of a six sided figure are

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9

6

12

3

Ab > 0 and a > 0 then

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a > b

a < b

a = b

None

Domain of Y = csc x is

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R - nπ, n ε I

R

R -nπ/2,nεI

All negative Integers

The associative angle of 280^o is

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100^o

10^o

80^o

-80^o

Sin x + Cos x=1 x=

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π

π/2

π/3

π/4

If α and β be irrational roots of a quadratic equation, then

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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

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NAT I General Science Mathematics MCQs With Answers

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