: c : ( c) = c - c c ( k j i - 9 9 9 (,, 0) (,, ) (,,) (,, ) ( i + i - ( 7 (,, ) = (,, ) (,, ) 7 (,, ) ( 9,, ) = (,, ) - ( (,, 0) - (,, ) ( M s - 0 (,, ) (,, ) (,, ) = 0 i 90 ( yz xy -7 = (,, ) ( = -8 ( -9 ( : MN N M N = = + E EF + EF F N M -0 ( + + EF - 0 + 0 c = (,, ) = ( 00,, ) 0-90 = ( 0,, ) ( 0 ( - (
0 0 90 0 e + e = 0-0 ( - 0 0 0 (. + E.F - E ( + ).( + ) - - + + + + y d 8. +.c + c. d(,, ) c( 7,, ) c 8 ( 9 8 9-7 + + c= (,, ) (,, ) e e = e c 90. = (,, ) (,, ) ( 0,, ) (,, ) 0 ( ) (,, ) 90 ( -8 ( -9 ( -0 ( c - 0 ( = (,, ) - ( - ( (,, ) - 0 ( c - + c c ( F E F : 0 + c c - E + + F ( + ) ( ) + ( + ).( ) 8 ( -7 FE ( F -8 + + c c..c = 7 c -9 9 8 7 ( (
: ( ) + ( ) -0 8 ( : + c= c c - ( c+ + c + V c - : V V V V ( : (+ ) (+ + ) = - (
( c) = (.c) (.)c = (.c) = (.)c. - c c c :.c =. = c (,,) 0 x z (,,) 00 c c c ( c) = :. c. - : 0+ 0+ + 0 O = (,, ) = (,, ). O. i. - i + i i. = i = i = x i : ( + i) ( i) = i + i = 8i = i = i. i. + 9 = = = + + 9. = = (,, ) = (,, ) = (,, ) + 9+ : i+ k. (i + j).(j + k) sθ = = = θ ˆ = 0 i+ jj+ k z (,, 00) (, 0,) (, 00,) y i i. -. -. - j+ k, i+ j k j i x. 0. -7 0 0 xy yz γ ˆ =, α ˆ = 0 : s α + s β + s γ = + s β + = sβ = ± e = (,, ) = (s α,s β,s γ ) = (, ±, )
.. -8 h = = 0i = 0 = h = h = h = h h =.. -9 ) = S = S ) = (+ ) = + = S = S ) = S = S. M. E N M MN = ME + EN : :. -0 :ME =, = ME = EN =, = EN = MN = + n + m m M = : M : : n+ m n M m = M n M = + MN = N M = + ( + ) = + N = +. - : = Sin0 = F E EF = E EF Sin0 = EF F = EF F Sin0 = E : = =. :
: = S E EF = S EF EF F = S FE : EF F + E EF + EF F = = S : = ( S) = S = = =. -.( ) e + e + e e = ( + ) e + e + + e : e ˆα = 0. :. 0 V =.( c) = 0 0 =. -. - 0.. α 0 α. e + e = e + e = e + e + e.e = + + e.e = e ˆ.e = = e e sθ sθ= θ= 0 ˆα = 0 α + 0 = 80 -. - (,, 0) x z E( 00,, ) ( 0,, ) ( 0,, ) F y. E.F = 0 : F E = ( 0,, ). = 9 = ( 0,, )
7 ( + ).( + ) =. =. = = ( 9 + ) = S = ( + ) ( + ) = + 9 = 8 = S = (+ ) ( + ) = + = = S 8 = = S + + c= (+ + c).(+ + c) = 0 + + c + (.+.c+ c.) = 0 + + + (. +.c + c.) = 0. +.c + c. =. -7. -8. -9. -0 d β β sβ = : y d(,, ) sβ = = = = + + (,, ) sβ = = = + + β ˆ > βˆ sβ < sβ <. - e e = ec e e = ec e + e e.e = ec + e.e = e.e = = e ˆ e sθ sθ= θ =. = s = = sθ θ. = sθ =.= + =. - = :. - : = = 9+ =.. - = ( 7,, ). 7+ 0,s= = = 0 ˆ = 90 = (,, ) 7.
8. - V =. [(+ c) ( c) ] =.( c+ c c c) =.(c c) =.( c ) =.(c ) =. - ( + c).( + c) = + + c +. 8.c.c. =.c =.c = 0 + c = + + c = + + = 9 + c =. -7 F = E E + F = E + E = F = + = F + = F F = E. 0 : ( + ) ( ) + ( + ).( ) = + + +.. : ( ). = 0 + = Sin90+ = + = 0. = 0.c = 0 + + c = + + c + (. +.c + c.).c = 7 ( + + c) = 9+ + + 7= + + c = 8 ( ).. -8 = =. -9. -0 ( c) = (c.) (.)c : ( ) = (.) (.) = s( 80 ) = ( ) = ( ) = (.) (.) = s = = 8 = + 8 = 8 : ( ) = Sin 90 = Sin = = ( ) = 8 : :
9 + c= c.( + c) =.( c).( ) +.( c) =.( c) :. - c 0 +.( c) = 0.( c) = 0. : + c= c + c c= + c+ c = : ( ) (c ) ( ) (c ) = c c c+ = c+ + c =.. - V ( ). [( c) (c ) ] = + + + = (+ ).( c+ + c c+ c ) = ( + ).( c + + c ) =.( c) +.( ) +.(c ) +.( c) +.( ) +.(c ) =.( c) +.(c ) =.( c) +.( c) =.( c) = V. : ( c) = (c ) = c( ) : c. + + +. +. = =.. s s ˆ = = = θ θ= θ=. -