(31/20.26/45). -36/35 23/10/2021 Bởi Arianna (31/20.26/45). -36/35 { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": " (31/20.26/45). -36/35
31/20 × 26/45 = 31 × 26 / 20 × 45 = 806/900 = 403/450 = 0.89 -36/35 < x < ( 51/56 + 8/21 + 1/3 ) × 8/13 = -36/35 < x < ( 153/168 + 64/168 + 56/168 ) × 8/13 = -36/35 < x < 13/8 × 8/13 = -36/35 < x < 13 × 8 / 8 × 13 = -36/35 < x < 1 →x = 0 Vậy x = 0 Bình luận
Xong rồi đó ở trong hình nha
31/20 × 26/45
= 31 × 26 / 20 × 45
= 806/900 = 403/450
= 0.89
-36/35 < x < ( 51/56 + 8/21 + 1/3 ) × 8/13
= -36/35 < x < ( 153/168 + 64/168 + 56/168 ) × 8/13
= -36/35 < x < 13/8 × 8/13
= -36/35 < x < 13 × 8 / 8 × 13
= -36/35 < x < 1
→x = 0
Vậy x = 0