Question # 1

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M

O

-M

I

AA^-1 = _________:

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A

A^-1

I

0

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Square

Row

Column

Rectangular

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ab-cd

ac-bd

bc-ad

ad-bc

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If A, B and C are comfortable for multiplication then A(BC) =

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AB

A(CB)

(AB)C

None

Transpose of row matrix is called ______ matrix:

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Identity

Row

Square

Column

The matrices are denoted by _________ letters of English alphabet:

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Small

Capital

Both a and b

None

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1-by-3

3-by-1

3-by-3

2-by-2

Let A,B,C be three matrices, then A(B+C) = AB + AC is known as:

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Cumulative property w.r.to '+'

Associative property w.r.t '+'

Left distributive law

Right distributive law

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zero

unit

scalar

singular

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Skew-symmetric

Symmetric

Diagonal

Scalar

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ad + cb = 0

ad = -bc

ad = bc

ab = cd

The entries presented in vertical way are called _______

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Columns

Diagonals

Row

Order

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3-by 2

2-by-3

1-by-3

3-by-1

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Mathematics 9th Class English Medium Unit 1 Online Test MCQs With Answers

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