Question # 1

Hero's formula is:

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Which of the following expression is not a rational expression?

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3√x +1/3√x +1

x3 +1/x + 1

x + 1 /3x3 + x2 +3

2x2/3y3

Area has dimensions:

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one

two

three

four

An expression which involves numbers and letters together with operational signs is called:

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Polynomial

Algebraic expression

rational expression

Irrational expression

Median to the equal sides of an isosceles triangle are:

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congruent

equal

similar

unequal

A matrix consisting of only one row is called a:

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row matrix

column matrix

scalar matrix

rectangular matrix

Which matrix is said to be additive identity of any matrix:

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scalar matrix

diagonal matrix

zero matrix

unit matrix

x + 5/x2 - 6x - x/x - 6 =?

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5 - x - x2/x2 -6x

5 + x - x2/x2 -6x

5 + x - x2/x2 +6x

x2 - 6x/5 + x- x2

A triangle with two equal sides is called an:

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isosceles triangle

obtuse triangle

scalene triangle

acute triangle

If a order of matrix A is (m x p) and order of matrix B is (p x n). Then order of matrix AB is:

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m x p

p x n

m x n

n x n

A square matrix in which all the element except at least one element in the diagonal are zero is called a:

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rectangular matrix

zero matrix

square matrix

diagonal matrix

What should be added in a2 + 4c to make it a complete square?

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2a

4c2

4c

2c2

If the centers of two circles lie in either side of the common tangent then it is called:

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external tangent

internal tangent

concyclic tangent

concentric tangent

If R is the remainder after dividing the polynomial P(x) by x -a, then:

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P(x) = R

P(R) = x

P(a) = R

P(R) = a

The square of the hypotenuse is equal to the sum of the square of two sides, this statement is called:

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Factor theorem

Hero's formula

Ratio formula

pythagoras theorem

The volume of a sphere is:

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πr2h

1/3πr2h

4/3πr2h

πr2

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