Three Dimensional Geometry Part 4

Section: Mathematics

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Question : 69 of 73

Marks: +1, -0

Consider a △ABC where A(1,2,3),,B(−2,8,0) and C(3,6,7). If the angle bisector of ∠BAC meets the line BC at D, then the length of the projection of the vector

→

AD

on the vector

→

AC

is:

[1-Feb-2024 Shift 2]

‌
37
2√38
‌
√38
2
‌
39
2√38
√19

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