Oblicz nacix: Oblicz: log[2−(log_¹5 √5)] * log_√5¹₅

Jolanta:

	1
log1/5 √5=x (		)x=√5
	5

5^−x=5^1/2

	1
−x =
	2

	1
x=−
	2

	1		1		5
2−(−		)=2		=
	2		2		2

	1		1
log√5		=c √5c=
	5		5

5^1/2*c=5⁻¹

	1
		c=−1
	2

c=−2

	5
log		*(−2)
	2

Jolanta:

	5		5		4
−2log		=log(		)−2=log
	2		2		25

?