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Mathematics
Mathematics
Problem
Given
A
=
4
i
^
+
2
j
^
\mathbf{A}=4\hat{i}+2\hat{j}
A
=
4
i
^
+
2
j
^
,
B
=
−
1
i
^
+
5
j
^
\mathbf{B}=-1\hat{i}+5\hat{j}
B
=
−
1
i
^
+
5
j
^
and
C
=
3
i
^
−
4
j
^
\mathbf{C}=3\hat{i}-4\hat{j}
C
=
3
i
^
−
4
j
^
, evaluate the resultant
R
=
−
A
+
B
−
C
\mathbf{R}=-\mathbf{A}+\mathbf{B}-\mathbf{C}
R
=
−
A
+
B
−
C
. a)
8
i
^
−
7
j
^
8\hat{i}-7\hat{j}
8
i
^
−
7
j
^
b)
−
6
i
^
−
3
j
^
-6\hat{i}-3\hat{j}
−
6
i
^
−
3
j
^
c)
−
8
i
^
+
7
j
^
-8\hat{i}+7\hat{j}
−
8
i
^
+
7
j
^
d)
−
8
i
^
−
7
j
^
-8\hat{i}-7\hat{j}
−
8
i
^
−
7
j
^
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