1) log₁₂3 + log₁₂4 = log₁₂(3*4) = log₁₂12 = 12) log₇98 - log₇2 = log₇(98/2) = log₇49 = 23) log₂5-log₂35 + log₂56 = log₂(5/35)
1) log₁₂3 + log₁₂4 = log₁₂(3*4) = log₁₂12 = 12) log₇98 - log₇2 = log₇(98/2) = log₇49 = 23) log₂5-log₂35 + log₂56 = log₂(5/35)