What is the vector equation of the line through (2, 0, 1) with direction vector (1, 2, 2)?

A. r=(2, 0, 1)+λ(1, 2, 2)

Step 1: Identify the concept: line equation. Step 2: The vector form of a line is r=a+λb, where a is point vector and b is direction vector. Step 3: Exam tip: Write point plus parameter times direction vector.

Step 1: अवधारणा line equation है। Step 2: Line का vector form r=a+λb है, जहाँ a point vector और b direction vector है। Step 3: याद रखें: Point plus parameter times direction vector लिखें।