AP EAPCET 16th May 2023 Shift 1 Solved Paper

Section: Mathematics

Question : 48 of 160

Marks: +1, -0

Let A(1,−1,2),B(6,11,2),C(1,2,6) be three points. If l1,m1,n1 are the direction cosines of AB and l2,m2,n2 are the direction cosines of AC, then |l1l2+m1m2+n1n2|=

‌
63
65
‌
36
65
‌
16
65
‌
13
64

Validate

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