Question

Urgenttt va rog ajutatimaaaaaaaaa

Answer 1

[tex]3)a)=log_3(27\cdot \frac{1}{3} )=log_39=log_33^2=2log_33=2\cdot1=2\\ b)=(3^4)^{ \frac{1}{4}}+( \frac{5}{1}) ^1=3+5=8\\ c)= \frac{5-3 \sqrt{2} }{5^2-(3 \sqrt{2} )^2} +\frac{5+3 \sqrt{2} }{5^2-(3 \sqrt{2} )^2} =\\ = \frac{10}{25-18} = \frac{10}{7} \\ 4) =\sqrt{a} ( \frac{1}{3} - \frac{1}{a} )\cdot \frac{a }{ \sqrt{a}} =\\ = \frac{a-3}{3a} \cdot a= \frac{a-3}{3} [/tex]

Answer 2

Vezi atasamentul. Sper sa te descurci fara dificultati! Spor la lucru! 

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