Question

[Ngô_Quỳnh_Anh]

So sánh các lũy thừa

5³⁰⁰ và 3⁴⁵³

31¹¹ và 17¹⁴

333⁴⁴⁴ và 444³³³

^{Giúp mình gấp nha}

Answer 1

[Tấn Phát Nguyễn]

5\(^{300}\)=25\(^{150}\)

3\(^{453}\)=27\(^{151}\)=27.27\(^{150}\)

vì 25\(^{150}\)<27.27\(^{150}\)

\(\Rightarrow\)5\(^{300}\)<3\(^{453}\)

31\(^{11}\)<32\(^{11}\)=(2\(^5\))\(^{11}\)=2\(^{55}\)

31\(^{11}\)<2\(^{55}\)

17\(^{14}\)>16\(^{14}\)=2\(^{56}\)

31\(^{11}\)<2\(^{55}\)<2\(^{56}\)<17\(^{14}\)

\(\Rightarrow\)31\(^{11}\)<17\(^{14}\)

Answer 2

[Tấn Phát Nguyễn]

333\(^{444}\)=3\(^{444}\).111\(^{444}\)

444\(^{333}\)=4\(^{333}\).111\(^{333}\)

ta có 3\(^{444}\)=81\(^{111}\)

4\(^{333}\)=64\(^{111}\)

\(\Rightarrow\)3\(^{444}\)>4\(^{333}\)(81\(^{111}\)>64\(^{111}\))

111\(^{444}\)>111\(^{333}\)

3\(^{444}\).111\(^{444}\)>4\(^{333}\).111\(^{333}\)

Vậy 333\(^{444}\)>444\(^{333}\)

nảy mình làm thiếu 1 câu bây giờ bù nhá