求解第6题
1个回答
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(1+1/2)(1+1/2^2)(1+1/2^4)(1+2^8)+1/2^15
=2(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+2^8)/+1/2^15
=2(1-1/2^2)(1+1/2^2)(1+1/2^4)(1+2^8)+1/2^15
=2(1-/2^4))(1+1/2^4)(1+2^8)+1/2^15
=2(1-1/2^8)(1+1/2^8)+1/2^15
=2(1-1/2^16)+1/2^15
=2-1/2^15+1/2^15
=2
=2(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+2^8)/+1/2^15
=2(1-1/2^2)(1+1/2^2)(1+1/2^4)(1+2^8)+1/2^15
=2(1-/2^4))(1+1/2^4)(1+2^8)+1/2^15
=2(1-1/2^8)(1+1/2^8)+1/2^15
=2(1-1/2^16)+1/2^15
=2-1/2^15+1/2^15
=2
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