1/2-(1/2-1/4)-(1/4-1/8)-…-(1/8192-1/16384)
1+2+4+8+16+32+64+128+256+512+1024+2048+4096+8192+16384+32768
1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768
1+2+4+8+16+32+64+…+8192过程
已知数列:1,(1+1/2),(1+1/2+1/4),(1+1/2+1/4+1/8),……(1+1/2+1/4+……1/
1+2+4+8+16+.+8192 要思路,或公式
1/2+1/4+1/8+1/16+……+1/256=( )
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)+1/2^15
(1/2+1/3+1/4+…+2002)*(1+1/2+1/3+1/4+…1/2001)-
1/(2*4)+1/(4*6)+1/(6*8)+1/(8*10)+……1/(48*50)=?
计算:(1-1/2)(1/3-1)(1-1/4)(1/5-1)……(1-1/2010)(1/2011-1)
(1-1/2)(1/3-1)(1-1/4)(1/5-1)……(1/2003-1)(1-1/2004)
(1-1/2)*(1-1/3)*(1-1/4)*……*(1-1/100)