" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
y = 30 cm = 0,3 m
1/f = 1/x + 1/y
1/f - 1/y = 1/x
y - f /yf = 1/x
x = yf/y-f
x = 0,3 m = 30 cm