A) 41
B) 47
C) \[\frac{41}{2}\]
D) \[\frac{47}{2}\]
Correct Answer: C
Solution :
Area is given by, \[\frac{1}{2}|(3\mathbf{i}+4\mathbf{j})\times (-5\mathbf{i}+7\mathbf{j})|\]\[=\frac{1}{2}|(41)\mathbf{k}|\,=\,\,\frac{41}{2}\].You need to login to perform this action.
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