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a) y = (8z/x-2)+1 → x-2 ≠ 0 → x ≠ 2
y-1 = 8z/x-2
(y-1)×(x-2) = 8z
x-2 = 8z/y-1
x = (8z/y-1)+2
b) 1/a = 1/x-1/y
a/1 = x/1 - y/1
a = x - y
x = a+y
c)y+√5 = 2/x√2-z√3
(y+√5)×(x√2-z√3) = 2
x√2-z√3 = 2/y+√5
x√2 = (2/y+√5) + z√3
x = ((2/y+√5)+z√3)/√2
ZADANIE 2
a) p=srl+sr² wyznacz l,s
l = (p-sr²):sr
s = p/(rl+r²)
b) a=√2bc - bd wyznacz b,d
b = a/√2c
c) x=2pi/a-c² + d/2 wyznacz a,d
a = 2π/(x+c²-d/2)
reszta jest troche nie zrozumiale zapisana... nie jednoznacznie.
licze na dobre punkty