Помогите пожалуйста!!!!
7.90) log(0.2,(5)) - log(0.2,(25)) = log(0.2,(5/25)) = log(0.2,(0.2)) = 1.
7.91) log(0.5,(6)) - log(0.5,(12)) = log(0.5,(6/12)) = log(0.5,(0.5)) = 1.
7.92) log(0.5,(2)) + log(0.5,(0.25)) = log(0.5,(2*0.25)) = log(0.5,(0.5)) = 1.
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