Помогите пож 5 задание( кто что сможет)

[latex]1) \frac{3^{15}*3^4:3^{10}}{3^8} = \frac{3^9}{3^8} =3[/latex] [latex]2) \frac{(ab)^4}{a^7b} * \frac{b^4a^3}{(ab)^9} = \frac{1}{a^4} * \frac{b^3}{(ab)^5} = \frac{b^3}{(ab)^5*a^4} = \frac{b^3}{a^5b^5a^4} = \frac{1}{a^5b^2a^4} = \frac{1}{a^9b^2} [/latex] [latex]3) (15^{2-x})^ \frac{1}{x-2} +13^0-1=(15^{2-x})^ \frac{1}{x-2} +1-1=15^{(2-x)* \frac{1}{x-2} =[/latex] [latex]=15^{-(x-2))* \frac{1}{x-2} }=15^{-(x-2)* \frac{1}{x-2}}=15^{-1}= \frac{1}{15} [/latex] [latex]4) \frac{8^{ \frac{1}{2} }*4^{ \frac{1}{2}} }{4^7:2^{10}} = \frac{2^{ \frac{3}{2}} }{4^{7- \frac{1}{2} }:2^1^0} = \frac{2^{ \frac{3}{2}} }{4^{ \frac{13}{2} }:2^{10} }= \frac{2^ \frac{3}{2} }{2^{13}:2^{10}} = \frac{2^ \frac{3}{2} }{2^3} = \frac{1}{2^{3- \frac{3}{2}} } = \frac{1}{2^ \frac{3}{2} } = \frac{1}{ \sqrt{2^3}} =[/latex][latex]= \frac{1}{2 \sqrt{2} } = \frac{ \sqrt{2} }{4 }[/latex] [latex]5) (100^{ \sqrt{3} })^{ \sqrt{3}}-100^0=10^{ \sqrt{3} \sqrt{3} }-1=10^3-1=1000-1=999[/latex] [latex]6) \frac{17*17^7:17^3}{56^6*56^5:56^{11}} = \frac{17^5}{56^0} = \frac{17^5}{1} =17^5[/latex] [latex]7) ( \frac{7}{6} )^3*( \frac{6}{7} )^{-4}:( \frac{7}{6} )^8= \frac{7^3}{6^3} *( \frac{7}{6})^4: \frac{7^8}{6^8} = \frac{7^3}{6^3} * \frac{7^4}{6^4} * \frac{6^8}{7^8} = \frac{7^4}{6^4} * \frac{6^5}{7^5} = \frac{6}{7} [/latex]