NDA Math Vector Algebra

© examsiri.com
Question : 45 of 101
 
Marks: +1, -0
In a triangle ABC, if taken in order, consider the following statements:
1.
→
AB
+
→
BC
+
→
CA
=
→
0

2.
→
AB
+
→
BC
−
→
CA
=
→
0

3.
→
AB
−
→
BC
+
→
CA
=
→
0

4.
→
BA
−
→
BC
+
→
CA
=
→
0

How many of the above statements are correct?
[NDA II 2018]
Go to Question: