Determine the angle between the pair of lines given by r^{\rightarrow} = 3ı^{^} + 2ȷ^{^}−4k^{^} + \lambda (2ı^{^} + 2ȷ^{^} + k^{^}) And r^{\rightarrow} = 5ı^{^}−2ȷ^{^} + \mu (6ı^{^} + 2ȷ^{^} + 3k^{^})

Correct Answer is : cos-1 (1921)

AAI ATC Junior Executive 25 Mar 2021 Shift 2 Paper

Question : 68 of 120

Marks: +1, -0

Determine the angle between the pair of lines given by

r↖{⟶} = 3ı↖{^} + 2ȷ↖{^}−4k↖{^} + λ (2ı↖{^} + 2ȷ↖{^} + k↖{^})

And

r↖{⟶} = 5ı↖{^}−2ȷ↖{^} + µ (6ı↖{^} + 2ȷ↖{^} + 3k↖{^})

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