12th Class
Mathematics
Sample Paper
Maths Olympiad Model Test Paper-12
question_answer
The absolute value of parameter t for which the area of the triangle whose vertices are \[A\left( -1,1,2 \right),\] \[B\left( 1,2,3 \right)\] and \[C\left( t,1,1 \right)\] is minimum, is _____.