Question

Tính :

a, \(\left(\dfrac{-5}{6}\right)^6.\left(\dfrac{6}{5}\right)^8\)

b, \(\left(-\dfrac{13}{8}\right)^3.\left(-\dfrac{32}{13}\right)^4\)

c, \(\left(0,2\right)^7.5^{10}\)

d, \(\left(-0,1\right)^7.\left(-10\right)^{13}\)

Các bạn cố gắng giúp mình nhé

Answer 1

a,\(\left(-\dfrac{5}{6}\right)^6.\left(\dfrac{6}{5}\right)^8=\left[\left(-\dfrac{5}{6}\right)^6.\left(\dfrac{6}{5}\right)^6\right].\left(\dfrac{6}{5}\right)^2=\dfrac{36}{25}\)

b,\(\left(-\dfrac{13}{8}\right)^3.\left(-\dfrac{23}{13}\right)^4=\left[\left(-\dfrac{13}{8}\right)^3.\left(-\dfrac{23}{13}\right)^3\right].\left(-\dfrac{23}{13}\right)=\left(\dfrac{23}{8}\right)^3.\left(-\dfrac{23}{13}\right)\)

c,\(\left(0,2\right)^7.5^{10}=\left(0,2.5\right)^7.5^3=125\)

d,\(\left(-0,1\right)^7.\left(-10\right)^{13}=\left(-0,1.\left(-10\right)\right)^7.\left(-10\right)^6=1000000\)