Question

1) Tính hợp lý :

a) \(\dfrac{8^8.3^{14}}{9^6.2^{20}}\)

b) \(\dfrac{-1}{4}\) . \(13\dfrac{9}{11}\) - \(\dfrac{7}{20}\) - 0,25 . \(6\dfrac{2}{11}\)

c) \(\left(\dfrac{1}{5}\right)^5\) . 15\(^2\) - \(\dfrac{2^5.5}{2^7}\)

CÁC BẠN GIÚP MÌNH NHA

Answer 1

a)\(\dfrac{8^8.3^{14}}{9^6.2^{20}}=\dfrac{^{24}.3^{14}}{3^{12}.2^{20}}=\dfrac{2^4.3^2}{1}=144\)

b),c) tự tính nha bn

Answer 2

a) \(\dfrac{8^8.3^{14}}{9^6.2^{20}}=\dfrac{\left(2^3\right)^8.3^{14}}{\left(3^2\right)^6.2^{20}}=\dfrac{2^{24}.3^{14}}{3^{12}.2^{20}}=\dfrac{2^4.3^2}{1}=144\)

b,c bấm máy tính