0.25的10次方*(2)的20次方?2.5的4次方*(16)的2次方?

0.25^10*(2)^20
=(1/4)^10*2^20
=(1/4)^10*(2^2)^10
=(1/4)^10*4^10
=(1/4*4)^10
=1^10
=1
2.5的4次方*(16)的2次方
=(5/2)^4*16^2
=(5/2)^4*(2^4)^2
=(5/2)^4*2^8
=(5/2)^4*(2^2)^4
=(5/2)^4*4^4
=(5/2*4)^4
=10^4
=10000