y∧2n=3,试求x∧6n×y∧4n和(xy)∧(6n+4n)详细过程谢谢
问题描述:
y∧2n=3,试求x∧6n×y∧4n和(xy)∧(6n+4n)详细过程谢谢
一定要原题改动,不然手机收不到,
答
x∧3n=43n=logx 4...以x为底,4的对数6n=2logx 4=logx 4^2=logx 16y∧2n=32n=logy 34n=logy 9(1)x∧6n×y∧4n=x^(logx 16)*y^(logy 9)=16*9=144(2)仅供参考x^n=4^(1/3)y^n=3^(1/2)(xy)^n=4^(1/3)*3^(1/2)(xy)∧(6n...