1) Tính :
a)(1000-1^3)(1000-2^3)(1000-3^3)....(1000-2^2018)
2)Tìm x , biết :
\(\dfrac{27}{3^x}\)=3
3) Tìm x, y biết :
a)\(x^2\)+\(\left(y-\dfrac{1}{10}\right)^{2018}\)=0
b)\(\left(\dfrac{1}{2}x-5\right)^{20}\)+\(\left(y^2-\dfrac{1}{4}\right)^{10}\)\(\le\)0