Oblicz logarytmy

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Oblicz logarytmy Maciek: http://iv.pl/images/74628880433623940435.png

14 mar 14:54

Janek191:

	1		1		1
a = log₄		⇔ 4^a =		⇔ a = −
	2		2		2

lub

	1		1		1		1
a = log₄		= log_2² 2⁻¹ =		log₂ 2⁻¹ =		(−1)1 = −
	2		2		2		2

14 mar 16:02

Janek191:

	1		1		1
b = log₈ 2 = log_2³ 2 =		log₂2 =		*1 =
	3		3		3

lub

	1
b = log₈ 2 ⇔ 8^b = 2 ⇔ (2³)^b = 2 ⇔ 2^3b = 2¹ ⇔ 3 b = 1 ⇔ b =
	3

14 mar 16:06