Mathematics Part-II

Book: Mathematics Part-II

Chapter: 10. Vector Algebra

Subject: Maths - Class 12th

Q. No. 12 of Exercise 10.2

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12

Find the direction cosines of the vector


The direction cosines of a vector are defined as the coefficients of in the unit vector in the direction of the vector.

So, first we find the unit vector in the direction of the vector.


Let




Therefore, The direction cosines of the given vector are .


12

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