UPSC NDA Math Model Paper 5
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Question : 7 of 120
Marks:
+1,
-0
If |
+
| = |
−
| , then which of the following is/are correct?
1. Vectors a andb are orthogonal
2.
×
= 0 (
=
≠0 )
Select the correct answer using the code given below
1. Vectors a and
2.
Select the correct answer using the code given below
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