Question

bài 1: 

\(a,\left(\frac{3}{15}\right)^{15}:\left(\frac{9}{26}\right)^5\)                                                \(b,5-\left(\frac{-5}{11}\right)^0+\left(\frac{1}{3}\right)^2:3\)

\(c,2^3+3.\left(\frac{1}{2}\right)^0+\left[\left(-2\right)^2.12\right].8\)

Answer 1

26 hay 25 nhỉ câu a í

Answer 2

\(a,\left(\frac{3}{15}\right)^{15}:\left(\frac{9}{25}\right)^5=\left(\frac{1}{5}\right)^{15}:\frac{9^5}{25^5}=\frac{1}{5^{15}}.\frac{5^{10}}{9^5}=\frac{1}{5^5.9^5}=\frac{1}{45^5}\)

\(b,5-\left(\frac{-5}{11}\right)^0+\left(\frac{1}{3}\right)^2:3=5-1+\frac{1}{3^2}.\frac{1}{3}=4+\frac{1}{3^3}=\frac{109}{27}\)

\(c,2^3+3\left(\frac{1}{2}\right)^0+\left[\left(-2\right)^2.12\right].8=8+3.1+4.12.8=395\)

Answer 3

25