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Explore scalar and vector operations, including scalar multiplication, vector addition, subtraction, dot and cross products. Learn determinant definitions, properties, and examples. Discover applications like finding area and volume using cross products and triple scalar products. Understand coplanarity between vectors and points.
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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