The magnitude of the projection uses the cosine of the angle with the:
ALine
BOrigin
Cy-axis
DPlane
Answer & Solution
Correct answer: A. Line
1. The vector makes some angle with the given line.
2. Its shadow on the line depends on that angle.
3. The magnitude is the length times the cosine of that angle.
_Source: syllabus Mathematics Part II, Chapter 10, Vector Algebra._
Keep practising Vector Algebra
Browse all Vector Algebra questions for CBSE Class 12 (Commerce), or explore more Mathematics topics.
Related questions
If a · b equals |a||b| for nonzero vectors, the angle between them isThe triangle with vertices (1, 0, 0), (0, 1, 0) and (0, 0, 1) has areaUnit vectors a and b satisfy |a + b| = 1. The angle between them isTwo perpendicular vectors have magnitudes 6 and 8. The magnitude of their sum isIf xi + 3j − k equals 2i + yj + zk, then x + y + z isThe vectors 2i + 4j − 6k and i + 2j − 3k areThe direction cosines of 2i − 3j + 6k areThe scalar triple product of three vectors gives the volume of a