RissaVC
RissaVC
28-04-2014
Mathematics
Answered
Can someone please help me able this: log4x^5=20
Answer :
Аноним
Аноним
29-04-2014
[tex]log_4x^5=20\\\\log_4x^5=log_44^{20}\iff x^5=4^{20}\\\\x^5=4^{4\cdot5}\\\\x^5=(4^4)^5\iff x=4^4\Rightarrow x=256\\\\\\D:x\in\mathbb{R^+}[/tex]
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