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Question Number 159390 by pete last updated on 16/Nov/21

Find the relation between x and y if  log_4 x +3=log_(27) y

$$\mathrm{Find}\:\mathrm{the}\:\mathrm{relation}\:\mathrm{between}\:{x}\:\mathrm{and}\:{y}\:\mathrm{if} \\ $$$$\mathrm{log}_{\mathrm{4}} {x}\:+\mathrm{3}=\mathrm{log}_{\mathrm{27}} {y} \\ $$

Answered by abdullah_ff last updated on 16/Nov/21

log_4 x+3=log_(27) y  ⇒ log_4 x=log_(27) y−3  ⇒ x=4^(log_(27) y−3)

$$\mathrm{log}_{\mathrm{4}} {x}+\mathrm{3}=\mathrm{log}_{\mathrm{27}} {y} \\ $$$$\Rightarrow\:\mathrm{log}_{\mathrm{4}} {x}=\mathrm{log}_{\mathrm{27}} {y}−\mathrm{3} \\ $$$$\Rightarrow\:{x}=\mathrm{4}^{\mathrm{log}_{\mathrm{27}} {y}−\mathrm{3}} \\ $$

Commented by pete last updated on 16/Nov/21

thank you sir

$$\mathrm{thank}\:\mathrm{you}\:\mathrm{sir} \\ $$

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