The direction of the projection depends on the sign of the:
ACotan
BCosine
CCosec
DSecant
Answer & Solution
Correct answer: B. Cosine
1. The projection may point along or against the line.
2. Which one is decided by one trigonometric value.
3. It is the sign of the cosine.
_Source: NCERT Class 12 Mathematics Part II, Chapter 10, Vector Algebra._
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