设a=2^32,用含a的代数式表示:(1+2)(1+2^2)(1+2^4)(1+2^8)(1+2^16)(1+2^32)
參考答案:1+2)(1+2^2)(1+2^4)(1+2^8)(1+2^16)(1+2^32)
=(2-1)(2+1)(2^2+1)(2^4+1)...(2^32+1)
=(2^2-1)(2^2+1)(2^4+10...(2^32+1)
=(2^4-1)(2^4+1)...(2^32+1)
=....
=(2^32-1)(2^32+1)
=[2^32]^2-1
=a^2-1
设a=2^32,用含a的代数式表示:(1+2)(1+2^2)(1+2^4)(1+2^8)(1+2^16)(1+2^32)
參考答案:1+2)(1+2^2)(1+2^4)(1+2^8)(1+2^16)(1+2^32)
=(2-1)(2+1)(2^2+1)(2^4+1)...(2^32+1)
=(2^2-1)(2^2+1)(2^4+10...(2^32+1)
=(2^4-1)(2^4+1)...(2^32+1)
=....
=(2^32-1)(2^32+1)
=[2^32]^2-1
=a^2-1