1/x+1/y = 1/f |*x
1+x/y = x/f |*y
y+x = xy/f |*f
yf+xf = xy
f(x+y) = xy |:(x+y)
f = xy/(x+y)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/f = x+y/xy i wymnażamy na krzyż
xy=f(x+y) dzielimy przez (x+y)
Odp.
f=xy/(x+y)
1/x+1/y = 1/f |*x
1+x/y = x/f |*y
y+x = xy/f |*f
yf+xf = xy
f(x+y) = xy |:(x+y)
f = xy/(x+y)