1300 Math Formulas

(Dana P.) #1
CHAPTER 6. VECTORS

== =


=


Figure 77.
=



  1. ï ìN ìO ìP ìå
    r
    K
    r r r r
    = + + + + =




== =


=


Figure 78.
=


  1. `çããìí~íáîÉ=i~ï=
    ì î î ì
    r r r r


    • = + =





  2. ^ëëçÅá~íáîÉ=i~ï=
    ()ì î ï ì (î ï)


r r r r r r
+ + = + + =
=


  1. ì+î=()uN+uOIvN+vOIwN+wO


r r
= = = = = = =
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