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Trigonometry Section 6.4

Trigonometry Section 6.4. Vectors and Dot Products. Dot Product. The dot product of vectors u and v is defined as : u.v = v.u 0.v = u.(v+w)= v.v= c (u.v)= Ex 1. More Examples. Ex 2 & 3 Try the following: 1. Find the dot product of <5, 12> and <-3,2>

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Trigonometry Section 6.4

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  1. Trigonometry Section 6.4 Vectors and Dot Products

  2. Dot Product • The dot product of vectors u and v is defined as : • u.v = v.u • 0.v = • u.(v+w)= • v.v= • c(u.v)= • Ex 1

  3. More Examples • Ex 2 & 3 • Try the following: • 1. Find the dot product of <5, 12> and <-3,2> • 2. Find 3u.v when u=<2,2> and v=<-3,4> • 3. Use the dot product to find the magnitude of u=<2, -4>

  4. Homework • P. 447 1-14

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