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Byju's Answer
Standard XII
Mathematics
Vector Triple Product
Find a vector...
Question
Find a vector of magnitude 4 units which is parallel to the vector
3
i
^
+
j
^
.
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Solution
Let
a
→
=
3
i
^
+
j
^
Then,
a
→
=
3
2
+
1
=
3
+
1
=
4
=
2
A unit vector parallel to
a
→
=
a
^
=
a
→
a
→
=
1
2
3
i
^
+
j
^
Hence, Required vector =
4
a
^
=
4
×
1
2
3
i
^
+
j
^
=
2
3
i
^
+
2
j
^
Suggest Corrections
2
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