2^-1*64^2/3-3^log的底数3(8)+log的底数5(4)*log的底数根号2(5)+(1/cos1)^0

2^-1*64^2/3-3^log的底数3(8)+log的底数5(4)*log的底数根号2(5)+(1/cos1)^0=(1/2)*4^2- 8+2lg2/lg5* lg5/(1/2lg2) +1=8-8+4+1=5