若(9x^2)^3*(1/3)^8=4,求x^12的值
问题描述:
若(9x^2)^3*(1/3)^8=4,求x^12的值
答
(9x^2)^3*(1/3)^8=4
(3^6x^6)*(1/3)^8=4
x^6*3^6/3^8=4
x^6=4*9=36
x^12=36^2=1296