1. [latex] frac{2+ sqrt[3]{ frac{27}{8} } }{ frac{7}{2} }=(2+ frac{3}{2}): frac{7}{2}=3 frac{1}{2}* frac{2}{7}= frac{7}{2}* frac{2}{7}=1[/latex] Odpowiedź A 3. r=1/2d 5=1/2d 10=d d=a√2 10=a√2 10/√2=a 10√2/2=a a=5√2 P=a*a P=5√2*5√2 P=25*2 P=50 Odpowiedź B. 2. [latex] x^{2}+36x-6=0 \ Delta=36 ^{2} -4*1*(-6)=1296+24=1320 extgreater 0[/latex] Odpowiedź C
1. [latex] frac{ sqrt[4]{16}+ sqrt[3]{3 frac{3}{8} } }{( frac{2}{7})^{-1} } = frac{2+ sqrt[3]{ frac{27}{8} } }{ frac{7}{2} } = frac{2+ frac{3}{2} }{ frac{7}{2} } = frac{ frac{7}{2} }{ frac{7}{2} } =1[/latex] Odp. A 2. [latex] x^{2} +36x-6=0 \ \ Delta=36^{2}-4*1*(-6)=1296+24=1320 extgreater 0[/latex] Odp. C 3. [latex]r= frac{a sqrt{2} }{2} \ \ frac{a sqrt{2} }{2} =5 \ \ a sqrt{2}=10 \ \ a= frac{10}{ sqrt{2} }= frac{10 sqrt{2} }{2}=5 sqrt{2} \ \ P=a^{2} \ \ P=(5 sqrt{2} )^{2}=50[/latex] Odp. D