已知X^(2m)=2,X^(n)=5 (1)X^(6m) (2)X^(4m+2n)
问题描述:
已知X^(2m)=2,X^(n)=5 (1)X^(6m) (2)X^(4m+2n)
答
(1)X^(6m)=[X^(2m)]^3=2^3=8
(2)X^(4m+2n)=X^(4m)*X^(2n)={[X^(2m)]^2}*[X^(n)^2]=2^2*5^2=4*25=100