Toán ( x + 1/2 ) + ( x + 1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1 02/09/2021 By Kaylee ( 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` `⇔4×x+1/2+1/4+1/8+1/16=1` `⇔4×x+(8+4+2+1)/16=1` `⇔4×x+15/16=1` `⇔4×x=1/16` `⇔x=1/16:4` `⇔x=1/64` Trả lời
Đáp án: Giải thích các bước giải: ( x + 1/2 ) + ( x + 1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1 ( x + x + x + x ) + ( $\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ + $\frac{1}{16}$ ) = 1 4x + ( $\frac{1.8}{16}$ + $\frac{1. 4}{16}$ + $\frac{1.2}{16}$ + $\frac{1}{16}$ ) = 1 4x + $\frac{15}{16}$ = 1 4x = 1 – $\frac{15}{16}$ 4x = $\frac{1}{16}$ x = $\frac{1}{16}$ : 4 x = $\frac{1}{16}$ : 4 ( chú ý : dấu ” . ” giữa 2 số là dấu nhân nhé ) Trả lời
`(x+1/2)+(x+1/4)+(x+1/8)+(x+1/16)=1`
`⇔4×x+1/2+1/4+1/8+1/16=1`
`⇔4×x+(8+4+2+1)/16=1`
`⇔4×x+15/16=1`
`⇔4×x=1/16`
`⇔x=1/16:4`
`⇔x=1/64`
Đáp án:
Giải thích các bước giải:
( x + 1/2 ) + ( x + 1/4 ) + ( x + 1/8 ) + ( x + 1/16 ) = 1
( x + x + x + x ) + ( $\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ + $\frac{1}{16}$ ) = 1
4x + ( $\frac{1.8}{16}$ + $\frac{1. 4}{16}$ + $\frac{1.2}{16}$ + $\frac{1}{16}$ ) = 1
4x + $\frac{15}{16}$ = 1
4x = 1 – $\frac{15}{16}$
4x = $\frac{1}{16}$
x = $\frac{1}{16}$ : 4
x = $\frac{1}{16}$ : 4
( chú ý : dấu ” . ” giữa 2 số là dấu nhân nhé )