AP EAPCET 06-Jul-2022 Shift 2 Paper

Section: Mathematics

Question : 57 of 160

Marks: +1, -0

If (l1,m1,n1) and (l2,m2,n2) are the direction cosines of two lines satisfying the relations l2+mn−6n2=0 and 2l−m+3n=0, then |l1l2|+|m1m2|=

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