The angle between the planes and bars r.(i - 2j + 3k) + 4 = 0 and r.(2i + j - 3k) + 7 = 0 is

The angle between the planes and bars r.(i - 2j + 3k) + 4 = 0 and r.(2i + j - 3k) + 7 = 0 is

(A) π/2

(B) π/3

(C) cos^-1(3/4)

(D) cos^-1(9/14)

Monjur Alahi

10 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct answer is (D) cos^-1(9/14)

10 views Answered 2023-02-05 15:29

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