12th Class
Mathematics
Sample Paper
Maths Olympiad Model Paper-3
question_answer
Let a, b, c be distinct non-negative numbers. If the vectors and \[a\hat{i}+a\hat{j}+c\hat{k},\] \[\hat{i}+\hat{k}\] and \[c\hat{i}+c\hat{j}+b\hat{k}\] lie in a plane, then c is