Log1/2 (9-4 х)-log1/2*1/3=log1/2*15 решить )

Question

Алгебра: Log1/2 (9-4 х)-log1/2*1/3=log1/2*15 решить )

5352352356 · Answer

Log₁/₂ (9-4 х)-log₁/₂1/3=log₁/₂15

Log₁/₂ (9-4 х) =log₁/₂15 +log₁/₂1/3

Log₁/₂ (9-4 х) =log₁/₂15 *(1/3)

Log₁/₂ (9-4 х) =log₁/₂ 5

9-4 х = 5

4х=4

х=1

Log1/2 (9-4 х)-log1/21/3=log1/215 решить )

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