Question # 1

Matrices A = [aij] 2 x 3 and B =[bij] 3 x 2 are suitable for

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BA

A²

AB

B²

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a^x

a^xIn a

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Rational

Irrational

Natural

Odd

The area between the x-axis the curve y =4x-x2 is :

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32/2

15

18

21

Three right angles is the angle of measure

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270°

180°

90°

270'

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An upper triangular matrix

A lower triangular matrix

A diagonal matrix

A null matrix

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

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-i

2 + i

i

2 - i

The mid point of the line segment joining the points (4,0) and (0,4) is

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(4,4)

(2,2)

(-4,-4)

(-2,-2)

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If the roots of ax²- bx - c = 0 change by the same quantity, then the expression in a, b, c that does not change is

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The constant distance of all points of the circle from its centre is called the

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Radius of the circle

Secant of the circle

Chord of the circle

Diameter of the circle

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