4^m=7,4^mn=9,求4^3m-2n4的m次方=7,4的mn次方=9,求4的3m-2n次方
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 14:26:58
4^m=7,4^mn=9,求4^3m-2n4的m次方=7,4的mn次方=9,求4的3m-2n次方4^m=7,4^mn=9,求4^3m-2n4的m次方=7,4的mn次方=9,求4的3m-2n次方4^m=
4^m=7,4^mn=9,求4^3m-2n4的m次方=7,4的mn次方=9,求4的3m-2n次方
4^m=7,4^mn=9,求4^3m-2n
4的m次方=7,4的mn次方=9,求4的3m-2n次方
4^m=7,4^mn=9,求4^3m-2n4的m次方=7,4的mn次方=9,求4的3m-2n次方
4^mn/4^m=4^n=9/7(同底数幂相除,底数不变,指数相减.这里求出了4的n次放的值);
4的3m-2n次方就等价于4的3m次方除以4 的2n次方
而4^3m=(4^m)^3=7^3
4^2n=(4^n)^2=(9/7)^2
所以,所求结果为(7^3)/(9/7)^2=16807/81=207.5
4^mn/4^m=4^n=9/7 (4^m)^3 / (4^n)^2=343 / (81/49)=81*7=567
若m-n=4,mn=-1求(9-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)
m-n=7 mn=-5求(3m+5n+4mn)-(2n-4n+6mn)
已知m-n=4,m、n互为倒数求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4m+mn)的值
已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=2,mn=1,求多项式(-2mn+2mn+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值.
已知m-n=4,mn=-1,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值.
若m-n=4,mn=-1,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)
已知m-n=4,mn=-1,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)的值
已知m-n=3,mn=-3,求(-m-4n-mn)-(2mn-2m-3n)-(3mn+2n-2m)的值
已知m-n=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值
已知m-n=2,mn=1,求多项式(2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m+n=-4 mn=2求mn
若m-n=4,mn=-1,求代数式(9-2mn+2m+3n)-(m+4n+mn)的值
若m-n=7,mn=-5,求(3m-5n+4mn)-(2m-4n+6mn)的值.
若m-n=7,mn=5求(3m-5n+4mn)-(2m-4n+6mn)要计算过程]
若M-N=7,MN=-5,求(3M-5N+4MN)-(2M-4N+6MN)的值