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Mathematics
Mathematics
Problem
If
A
=
3
i
^
−
4
j
^
\mathbf{A}=3\hat{i}-4\hat{j}
A
=
3
i
^
−
4
j
^
, which of the following is
−
A
-\mathbf{A}
−
A
? a)
−
3
i
^
−
4
j
^
-3\hat{i}-4\hat{j}
−
3
i
^
−
4
j
^
b)
−
3
i
^
+
4
j
^
-3\hat{i}+4\hat{j}
−
3
i
^
+
4
j
^
c)
3
i
^
−
4
j
^
3\hat{i}-4\hat{j}
3
i
^
−
4
j
^
d)
−
4
i
^
+
3
j
^
-4\hat{i}+3\hat{j}
−
4
i
^
+
3
j
^
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