Answer to Question #51024 in Analytic Geometry for ayansola promise

Question #51024

a and b are vectors defined by a = 8i + 2j - 3k and b = 3i - 6j + 4k, where I,j,k are mutually perpendicular unit vectors. Show that a and b are perpendicular to each other.

a. 90
b. 45
c. 1
d. 0

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