y∧2n=3,试求x∧6n×y∧4n和(xy)∧(6n+4n)详细过程谢谢
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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,
一定要原题改动,不然手机收不到,
x∧3n=4
3n=logx 4...以x为底,4的对数
6n=2logx 4=logx 4^2=logx 16
y∧2n=3
2n=logy 3
4n=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+4n)
=[(xy)^n]^10
=[4^(1/3)*3^(1/2)]^10
=2^(20/3)*3^5
3n=logx 4...以x为底,4的对数
6n=2logx 4=logx 4^2=logx 16
y∧2n=3
2n=logy 3
4n=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+4n)
=[(xy)^n]^10
=[4^(1/3)*3^(1/2)]^10
=2^(20/3)*3^5
y∧2n=3,试求x∧6n×y∧4n和(xy)∧(6n+4n)详细过程谢谢
y∧2n=3,试求x∧6n×y∧4n和(xy)∧(6n+4n),
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