Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If the position vectors of
A
,
B
,
C
A, B, C
A
,
B
,
C
and
D
D
D
are
2
i
^
+
j
^
2\hat{i} + \hat{j}
2
i
^
+
j
^
,
i
^
−
3
j
^
\hat{i} - 3\hat{j}
i
^
−
3
j
^
,
3
i
^
+
2
j
^
3\hat{i} + 2\hat{j}
3
i
^
+
2
j
^
and
i
^
+
λ
j
^
\hat{i} + \lambda\hat{j}
i
^
+
λ
j
^
respectively and
A
B
∥
C
D
AB \parallel CD
A
B
∥
C
D
, then
λ
\lambda
λ
will be a. -8 b. -6 c. 8 d. 6
Browse the problem library