Page 54 - Radiation Safety
P. 54
LOGARITHM
Exponent Logarithm
x
a = y log y = x
a
Laws of logarithm Change of base of logarithm
Change of base of logarithm
• log m + log n = log mn 1
a
a
a
• log m - log n = log m/n • log b = log c b • log b =
a
a
a
• log m = n log m a log c a a log b a
n
a
a
Tips
log a = 1
a
log 1 = 0
a
