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Section 11.4 The Cross Product. Calculus III September 22, 2009 Berkley High School. Operations on Vectors (So Far). Scalar Multiplication Vector Addition Vector Subtraction Dot Product. New Operation: Cross Product. Definition of Determinant. Definition of Determinant.
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Section 11.4The Cross Product Calculus III September 22, 2009 Berkley High School
Operations on Vectors(So Far) • Scalar Multiplication • Vector Addition • Vector Subtraction • Dot Product
Assignment • Section 11.4, 1-35, odd x25 • But wait, there’s more…
Volume of Parallelepiped Triple Scalar Product
Are two vectors coplanar? • Any two non-zero vectors define a plane. • Are three vectors coplanar? • The vectors are coplanar iff the parallelepiped formed by the three vectors has Volume=0
Are three points coplanar? • Any three points define a plane. • Are four points coplanar? • From the four points, three vectors can be formed with a common tail. If the vectors are coplanar, then the points are coplanar.
Assignment • 11.4, 41-47 odd