Question

[♡•꧁༺༒✰ŞŦΔŘ✰༒༺꧁•♡✿(➻❥𝒢𝑜𝓁𝒹❃𝒮𝓉𝒶𝓇✤) ❀]

So sánh: A=2020¹⁰+ 2 /  2020¹¹+ 2 và B=2020¹¹+ 2 / 2020¹²+2

Giúp mk với!!!!

Thanks các bạn nha!!!

Answer 1

[$๖ۣۜN๖ۣۜE๖ۣۜV ๖ۣۜE ๖ۣۜR $ ^^๖ۣۜG๖ۣۜ...]

22 hay 2?

Answer 2

[$๖ۣۜN๖ۣۜE๖ۣۜV ๖ۣۜE ๖ۣۜR $ ^^๖ۣۜG๖ۣۜ...]

A=2020^10+2/2020^11+2

⇒ 2020A=2020^11+2.2020/2020^11+2

= 1+2.2020−2/2020^11+2

B=2020^11+2/2020^12+2

⇒ 2020B=2020^12+2.2020/2020^12+2

= 1+2.2020−2/2020^12+2

Vì 2020^12+2>2020^11+2

⇒ 2.2020−2/2020^11+2<2.2020−2/2020^12+2

⇒ 2020A<2020B

⇒ A<B