If the vector A=4î + 2d? and B=5î - ? are perpendicular ( ?????? ). What is the value of the constant d? A. 20 B. 15 C. 10 D. 5 E. None
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We know that A = 4i + 7j and B = 5i + 8j. We are also told that these vectors are perpendicular. For two vectors to be perpendicular, their dot product must be equal to 0. The dot product of two vectors A and B is given by: A · B = (A_x * B_x) + (A_y * B_y) Show more…
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