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Byju's Answer
Standard XII
Mathematics
Applications of Dot Product
Find the scal...
Question
Find the scalar projection of the vector
^
i
+
3
^
j
+
7
^
k
on the vector
2
^
i
−
3
^
j
+
6
^
k
.
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Solution
The scalar projection of vector
i
+
3
j
+
7
k
on the vector
2
i
−
3
j
+
6
k
is
(
i
+
3
j
+
7
k
)
.
(
2
i
−
3
j
+
6
k
)
|
2
i
−
3
j
+
6
k
|
=
2
−
9
+
42
√
49
=
35
7
=
5
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1
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