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Vectors -… | NUST Entrance Test Mathematics | ClassNotes

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NUST Entrance Test
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Vectors

Set 3

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MM

Mashaal Masha

Oct 08, 2022

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$The positive real number which is the measure of the length of a vector is called the:$
$If |a|=|b|=|a+b|=1, then |a-b| is equal to:$
$If |a|=3, |b|=4, and |a+b|=5, then |a-b|=$

Choose the correct options for the following questions.

The positive real number which is the measure of the length of a vector is called the:

Difficulty: Easy

A:

Unit vector

B:

If |a|=3, |b|=4, and |a+b|=5, then |a-b|=

C:

Inverse

D:

None

If |a|=|b|=|a+b|=1, then |a-b| is equal to:

Difficulty: Easy

A:

1

B:

\sqrt{3}

C:

\sqrt{2}

D:

7

If |a|=3, |b|=4, and |a+b|=5, then |a-b|=

Difficulty: Easy

A:

4

B:

6

C:

5

D:

3

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postVectors - Set 1
postVectors - Set 2
postVectors - Set 4
postVectors - Set 5