Mathematics Part-II

Book: Mathematics Part-II

Chapter: 10. Vector Algebra

Subject: Maths - Class 12th

Q. No. 9 of Exercise 10.4

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9

Find the area of the triangle with vertices A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5).

So,




Now we want to find the





Now we want to find the





We know that


So, we find first.



Expanding along first row,







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Chapter Exercises

More Exercise Questions

1

Find if