Câu hỏi của lilysdang

Question

so sanh 2 phan so sau a=2017.2018-1 / 2017.2018b=2018.2019-1 / 2018.2019

Yeutoanhoc · Accepted Answer

`a=(2017.2018-1)/(2017.2018)``=1-1/(2017.2018)``b=(2018.2019-1)/(2018.2019)``=1-1/(2018.2019)`Vì `2017.2018<2019.2018``=>1/(2017.2018)>1/(2019.2018)``=>1-1/(2017.2018)<1-1/(2019.2018)`Hay `a1/(2017.2018)>1/(2019.2018)``=>1-1/(2017.2018)<1-1/(2019.2018)`Hay `a

huy nguyen · Answer

a<b vì (0,9999997543<0,9999997546)Câu trả lời: a<b vì (0,9999997543<0,9999997546)

huy nguyen · Answer

a=2017.2018−12017.2018a=2017.2018-12017.2018=1−12017.2018=1-12017.2018b=2018.2019−12018.2019b=2018.2019-12018.2019=1−12018.2019=1-12018.2019Vì 2017.2018<2019.20182017.2018<2019.2018⇒12017.2018>12019.2018⇒12017.2018>12019.2018⇒1−12017.2018<1−12019.2018⇒1-12017.2018<1-12019.2018Hay a12019.2018⇒12017.2018>12019.2018⇒1−12017.2018<1−12019.2018⇒1-12017.2018<1-12019.2018Hay a

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