wyznacz x z wzorów. : t=x/a - 5xp= a+x+axm= (x+1)p - 3x
w= 1/x + p Z góry dziękuje i daje naj. ;D
a) t = x/a - 5x t=x(1/a -5) t=x( (1-5a)/a ) /:( (1-5a)/a ) x=t/( (1-5a)/a ) x= at/(1-5a) b) p = a + x + ax p=a+ x(1+a) x(1+a)=p-a /:(1+a) x=(p-a)/(1+a) c) m = (x+1)p - 3x m=xp+p-3x m=p+x(p-3) x(p-3)=m-p /:(p-3) x=(m-p)/(p-3) d) w = 1/x + p /*x xw=1 +xp xw-xp=1 x(w-p)=1 /:(w-p) x=1/(w-p)
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a)
t = x/a - 5x
t=x(1/a -5)
t=x( (1-5a)/a ) /:( (1-5a)/a )
x=t/( (1-5a)/a )
x= at/(1-5a)
b)
p = a + x + ax
p=a+ x(1+a)
x(1+a)=p-a /:(1+a)
x=(p-a)/(1+a)
c)
m = (x+1)p - 3x
m=xp+p-3x
m=p+x(p-3)
x(p-3)=m-p /:(p-3)
x=(m-p)/(p-3)
d)
w = 1/x + p /*x
xw=1 +xp
xw-xp=1
x(w-p)=1 /:(w-p)
x=1/(w-p)