A) \[r=1,\text{ }p=q\]
B) \[p=1,\text{ }q=1\]
C) \[r=2p,\text{ }q=2\]
D) \[q=1,\text{ }p=r\]
E) \[q=1,r=1\]
Correct Answer: D
Solution :
Given,\[\overrightarrow{p}\times \overrightarrow{q}=\overrightarrow{r}\]and \[\overrightarrow{q}\times \overrightarrow{r}=\overrightarrow{p}\]. Now, taking options one by one, we see that only option (d) satisfies it.
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