Mathematics Part-II

Book: Mathematics Part-II

Chapter: 10. Vector Algebra

Subject: Maths - Class 12th

Q. No. 17 of Miscellaneous Exercise

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Let and be two unit vectors and q is the angle between them. Then is a unit vector if

let the two unit vectors are and is the angle between.


Then this is () is unit vector if

scalar product is cumulative.

Hence, () is unit vector if .

The correct answer is (D).


Chapter Exercises

More Exercise Questions


If , then is it true that ? Justify your answer.