Các câu hỏi tương tự
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
tim x biet : ( x + 1/2 ) + ( x + 1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1
tim x biet
(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)=1
tim x biet:
(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)=1
tim 2 so biet
(x+1/2)+(x+1/4)+(x+1/8)+(1/16)
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
( 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