Question # 1

The symbol of irrational is

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W

N

Q

Q'

A subset of set of complex number whose elements are of the form (a,0) is called

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Real number

Complex number

Rational number

Irrational number

A monoid (G, *) is said to be group if

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have identity element

is commutative

have inverse of each element

None of these

The central angle of an arc of a circle whose length is equal to the radius of the circle is called the

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degree

radian

minute

second

The degree of differential equation is the power of the

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Lowest order derivative

Highest order derivative

Integral

All are correct

The set {-1, 1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

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1

2

3

4

A second degree equation in which coefficients of x²and y²are equal and there is no product therm xy represents:

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a parabola

a circle

an ellipse

a pair of lines

Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

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x³- x²+ x + c

6x - 2 + c

x³- 2x + c

The distance of the point (-2 , 3) from y-axis is

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2

-2

3

1

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