12th Class
Mathematics
Sample Paper
Maths Olympiad Model Test Paper-12
question_answer
The angle between the line \[\overrightarrow{r}=(\hat{i}+2\hat{j}+3\hat{k})+\lambda \,\,(2\hat{i}+3\hat{j}+4\hat{k})\] and the plane \[\overrightarrow{r}.(\hat{i}+2\hat{j}-2\hat{k})=0\] is_________.