Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Three-dimensional Geometry

Question:

The angle between the lines whose direction ratios are \(a,b,c\) and \(b-c,c-a,a-b\) is

Options:

\(45^{\circ}\)

\(90^{\circ}\)

\(0^{\circ}\)

\(135^{\circ}\)

Correct Answer:

\(90^{\circ}\)

Explanation:

Apply the formula for the angle between the lines