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Trigonometry Section 6.4

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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

Trigonometry Section 6.4

Vectors and Dot Products

dot product
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
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>
homework
Homework
  • P. 447 1-14