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Trigonometry Section 6.4 - PowerPoint PPT Presentation
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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
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>
- 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
- P. 447 1-14
