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Mathematics
Problem
Let
A
⃗
=
2
i
^
+
3
j
^
+
6
k
^
\vec A=2\hat i+3\hat j+6\hat k
A
=
2
i
^
+
3
j
^
+
6
k
^
and
B
⃗
=
i
^
−
2
j
^
+
2
k
^
\vec B=\hat i-2\hat j+2\hat k
B
=
i
^
−
2
j
^
+
2
k
^
. The scalar projection of
A
⃗
\vec A
A
on
B
⃗
\vec B
B
is a)
8
8
8
b)
8
7
\dfrac{8}{7}
7
8
c)
8
3
\dfrac{8}{3}
3
8
d)
8
9
\dfrac{8}{9}
9
8
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