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NDA Math Vector Algebra

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Question : 59

Total: 101

If

then which one of the following is correct?

→
a
,
→
b
,
→
c
are orthogonal in pairs and |
→
a
|=|
→
c
| and |
→
b
|=1
→
a
,
→
b
,
→
c
are non-orthogonal to each other
→
a
,
→
b
,
→
c
are orthogonal in pairs but |
→
a
|≠|
→
c
|
→
a
,
→
b
,
→
c
are orthogonal in pairs but |
→
b
|≠1

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