Question # 1

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ad + cb = 0

ad = -bc

ad = bc

ab = cd

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

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3-by-3

3-by-1

1-by-3

1-by-1

The idea of matrices was given by

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Aurthur Cayley

Briggs

Al-Khawarzmi

Thomas Harriot

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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

Aurther Cayley introduces theory of matrices in:

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1854

1856

1858

1860

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If B+A=A=A+B, the B is called:

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Multiplicative identity

Multiplicative inverse

Additive identity

Additive inverse

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a = -4, b = 7

a = 7, b = -4

a = 1, b = 3

Cannot be determine

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

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Column

Row

Diagonal

None

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[8 2]

Product is not possible

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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P = Q

P≠ Q

P < Q

P > Q

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Square

Row

Column

Rectangular

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-3

-4

3

4

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

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