Question # 1

Order of matrix P = [3 2 5] is:

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3-by-3

3-by-1

1-by-3

1-by-1

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[-13]

[-3]

[3]

[13]

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The entries presented in horizontal way are called ______

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Columns

Diagonals

Rows

Order

(AB)^-1 =

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A^-1B^-1

AB

BA

B^-1A^-1

The idea of matrices was given by

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Aurthur Cayley

Briggs

Al-Khawarzmi

Thomas Harriot

Transpose of A is denoted by:

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-A

A

A^t

(A^t)^t

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

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AB

A(CB)

(AB)C

None

General form of linear equation in two variables is:

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ax + by -m = 0

ax + by = m

ax + m = by

None of these

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Skew-symmetric

Symmetric

Diagonal

Scalar

If a matrix has m rows and n columns the order of matrix is:

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m-by-m

n-by-n

m-by-n

n-by-m

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9

-6

6

-9

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Square

Row

Column

Rectangular

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The matrices are denoted by _________ letters of English alphabet:

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Small

Capital

Both a and b

None

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6

3

-3

-6

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

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