(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+(3*3+4*4)/(3*4)+.+(2005*2005+2006*2006)/(2005*2006)=?要计算结果.不要直接给答案.(2000+20002000+200020002000+2000200020002000)/(2001+20012001+200120012001+2001200120012001)=?要计算
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2、(1),(2)
1 2 1 2 () () ()()
1+1/2^2
(2^2+1)*(2^4+1)*(2^8+1)*(2^16+1)*(2^32+1)
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)+1/2^15
(1+1/2*2)(1+2*2*2*2)(1+2*2*2*2*2*2*2*2)+1/215要有过程(注:*是乘号)
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)+1/2^15=?
-2,-1,2,5,( )
(1-1/2^2)(1-1/3^2)K(1-1/10^2)
(1-1/2^2)(1-1/3^2)K(1-1/10^2)
(1+1/2)(1+1/2^2)(1+1/2^4)^(1+1/2^32)
(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
(1)(2)
(1) (2)
(1)(2)
(1),(2).
(1)(2)
(1)(2)