Mathematics Part-II

Book: Mathematics Part-II

Chapter: 11. Three Dimensional Geometry

Subject: Maths - Class 12th

Q. No. 10 of Exercise 11.2

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10

Find the angle between the following pairs of lines:

We know that

If θ is the acute angle between and , then


……(i)


(i) and


Here and


So, from (i), we have


……(ii)




And


Now,



By (ii), we have




(ii) and


Here, and


So, from (i), we have


…(iii)




And


Now,



By (iii), we have




10

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