Question # 1

The product in matrices AB, the number of columns of A must be equal to number _______ of B.

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Columns

Entries

Rows

None of these

A matrix is called column matrix if it has only one:

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Column

Row

Diagonal

None

The matrices are denoted by _________ letters of English alphabet:

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Small

Capital

Both a and b

None

AA^-1 = _________:

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A

A^-1

I

0

Aurther Cayley introduces theory of matrices in:

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1854

1856

1858

1860

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1-by-3

3-by-1

3-by-3

2-by-2

The entries presented in vertical way are called _______

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Columns

Diagonals

Row

Order

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zero

unit

scalar

singular

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ad + cb = 0

ad = -bc

ad = bc

ab = cd

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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ab-cd

ac-bd

bc-ad

ad-bc

(AB)^-1 =

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A^-1B^-1

AB

BA

B^-1A^-1

A matrix is called a row matrix if it has only one _________:

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Column

Row

Diagonal

None

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9

-6

6

-9

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

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