Question

What do u mean by direction cosine ?

In vectors

I need only 4 lines explanation not more than that otherwise I will report it
So that I can learn it

Answer 1

Hey mate.....^_^

Here's ur ans. ⤵

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➡ When alpha , beeta and gamma are the angles between the given vector and X-axis , Y-axis and Z-axis respectively then cos alpha , cos beeta , cos gamma together are known as direction cosine .

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Sorry it's more than 4 lines :(

Answer 2

In Analytic geometry ,the direction cosines of a vector are the cosines of the angles between the vector and the three coordinate axes.


HOPE it will understand u better

thank u