a —
~ [2 £ —
n (d 2
+ r f i ) +
\f[2L — n(d7
+ rf5)] 7 — G(d2—d j ) : ]~
+
^ [ 2 a = 9 5 4 - 3 .1 4 ( 1 7 0 + 90)
+V12- 954 -3 .1 4 (1 7 0 + 9 0 )] 2 - 8 ( 1 7 0 - 9 0 ) 2J
b) Y arim p o n asim o n tasm alar uzatm alar uchun
a =
—Г2 • 944 -
3.
14(170 + 90) +
J[2 ■
944 -
3 .
14(170 + 9 0)]3 - 8(170 - 9 0 )2 = 2 6 4
8 L
v) E nsiz ponasim on tasm alar u zatm alar uchun
a = ^ [2 • 518 - 3.14(120 + 63) +
+V'[2- 5 1 8 —3.14(120 + 63 )] 2 - 8 ( 1 2 0 - 63)
2j
= 110
11. Bitta tasm a y ordam ida uzatish m um kin b o ‘lgan quvvat.
a) N o rm al ponasim on tasm alar uzatm alar uchun
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