<=>4x+15/16=1
<=>4x=1-15/16
<=>4x=1/16
<=>x=(1/16)/4
<=>x=1/64
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Tìm x, biết:(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)+(x+1/32)=2
1. tinh nhanh: 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128
2. tim x: ( x + 1/2 ) + ( x +1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1
tìm x , biết :
[ x + 1/2 ] + [ x + 1/4 ] + [ x + 1/8 ] + [ x + 1/16 ] = 23/16
[x+1/2]+[x+1/4]+[x+1/8]+[x+1/16]=1 tìm x
{ x + 1/2 } + { x + 1/4 } + { x + 1/8 } + { x + 1/16 } = 1
( x+ 1/2) + (x+1/4)+(x+1/8)+(x+1/16)=1
(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)=1
(x + 1/4) + (x + 1/8) + (x + 1/16) + (x +1/2 ) = 1
(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)=1