(2^20*0.25^12)/(0.5^11*4^3)要简便计算,

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(2^20*0.25^12)/(0.5^11*4^3)要简便计算,

(2^20*0.25^12)/(0.5^11*4^3)要简便计算,
(2^20*0.25^12)/(0.5^11*4^3)
要简便计算,

(2^20*0.25^12)/(0.5^11*4^3)要简便计算,
(2^20*0.25^12)/(0.5^11*4^3)
= [ 4^10*0.25^12 ] / [ 0.5^11*2^6 ]
= [ (4*0.25)^10*0.25^2 ] / [ 0.5^5*(0.5*2)^6 ]
= (0.25^2) / 0.5^5
= 0.5^4 / 0.5^5
= 1 / 0.5
= 2