Toán 1/2−(1/3+1/4+) ≤ x ≤ 1/24−(1/8−1/3) giải giúp mik nha 13/09/2021 By Vivian 1/2−(1/3+1/4+) ≤ x ≤ 1/24−(1/8−1/3) giải giúp mik nha
`1/2 – (1/3 + 1/4) ≤ x ≤ 1/24 – (1/8 – 1/3)` `⇒ 1/2 – 1/3 – 1/4 ≤ x ≤ 1/24 – 1/8 + 1/3` `⇒ 6/12 – 4/12 – 3/12 ≤ x ≤ 1/24 – 3/24 + 8/24` `⇒ -1/12 ≤ x ≤ 6/24` `⇒ -1/12 ≤ x ≤ 1/4` Trả lời
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`1/2 – (1/3 + 1/4) ≤ x ≤ 1/24 – (1/8 – 1/3)`
`⇒ 1/2 – 1/3 – 1/4 ≤ x ≤ 1/24 – 1/8 + 1/3`
`⇒ 6/12 – 4/12 – 3/12 ≤ x ≤ 1/24 – 3/24 + 8/24`
`⇒ -1/12 ≤ x ≤ 6/24`
`⇒ -1/12 ≤ x ≤ 1/4`