IIT-JEE 1983 | 3D Geometry Question 53 | Mathematics

IIT-JEE 1983

MCQ (Single Correct Answer)

-0.25

The volume of the parallelopiped whose sides are given by
$$\overrightarrow {OA} = 2i - 2j,\,\overrightarrow {OB} = i + j - k,\,\overrightarrow {OC} = 3i - k,$$ is

$${4 \over {13}}$$

$$4$$

$${2 \over 7}$$

none of these

IIT-JEE 1983

MCQ (Single Correct Answer)

-0.25

The points with position vectors $$60i+3j,$$ $$40i-8j,$$ $$ai-52j$$ are collinear if

$$a=-40$$

$$a=40$$

$$a=20$$

none of these

JEE Advanced Subjects