MediumVectors & geometry

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.1 Vectors and Dot Products, #21 · Multivariable Calculus · Vectors & geometry

(a) Choose … so that … is perpendicular to

(a) Choose $d$ so that $A = 2 i + 3 j$ is perpendicular to $B = 9 i + d j$ .
(b) Find a vector $C$ perpendicular to $A = i + j + k$ and $B = i - k$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.1 Vectors and Dot Products, #21

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