3^12x=(3^x)^12=a^12
3^12x=(3^2)^6x=9^6x=(9^x)^6=b^6
3^12x=(3^3)^4x=27^4x=(27^x)^4=c^4
积的乘方已知3^x=a,求3^12x已知9^x=b,求3^12x已知27^x=c,求3^12x
3^12x=(3^x)^12=a^12
3^12x=(3^2)^6x=9^6x=(9^x)^6=b^6
3^12x=(3^3)^4x=27^4x=(27^x)^4=c^4