A) \[3\]
B) \[4\]
C) \[5\]
D) \[6\]
Correct Answer: B
Solution :
Since, vectors are perpendicular. \[\therefore \] \[(3\hat{i}-2\hat{j}-5\hat{k}).(c\hat{k}-\hat{j}+6\hat{i})=0\] \[\Rightarrow \] \[18+2-5c=0\] \[\Rightarrow \] \[c=4\]You need to login to perform this action.
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