The value of ‘m’ when 2i + mj - 3k and 2i + 3j + 4k perpendicular – McqOptions

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1.	The value of ‘m’ when 2i + mj - 3k and 2i + 3j + 4k perpendicular is
A.	m = -8/3
B.	m = 8/3
C.	m = 3/8
D.	m = -3/8
Answer» D. m = -3/8

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