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CHAPTER 6. VECTORS
======= =
=
Figure 73.
=
r →
552. ê = ( ^_ = N M )ñ − O + ( ñ N M )ó − O + ( ó N ò M ) ò − O =
=
→ r → r
=
ê
ê
553. fÑ= ^_ = I=íÜÉå=_^ − K=
=
=
=
Figure 74.
=
r
554. u = ê Åçë α I=
r
v = ê Åçë β I=
r
w = ê Åçë γ K=
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