(1+1⼀2)(1+1⼀2^2)(1+1⼀2^4)(1+1⼀2^8)+1⼀2^15=?

2025-03-01 18:36:55
推荐回答(1个)
回答1:

(1+1/2)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)+1/2的15次方
=(1-1/2)×(1+1/2)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)÷(1-1/2)+1/2的15次方
=(1-1/2的2次方)×(1+1/2的2次方)×(1+1/2的4次方)×(1+1/2的8次方)÷1/2+1/2的15次方
=(1-1/2的4次方)×(1+1/2的4次方)×(1+1/2的8次方)×2+1/2的15次方
=(1-1/2的8次方)×(1+1/2的8次方)×2+1/2的15次方
=(1-1/2的16次方)×2+1/2的15次方
=2-1/2的15次方+1/2的15次方
=2