Question

[nguyen thi thanh truc]

So sanh:

13⁴⁰ voi 2¹⁶¹

54²¹⁷ voi 109⁷²

Answer 1

[Đào Minh Nhật]

2^161=(2^4)^40*2=16^40*2>13^40*2>13^40

54^217=(54^3)^72*54>109^72*54>109^72

Answer 2

[Thao Nhi]

13⁴⁰<16⁴⁰

13⁴⁰<2¹⁶⁰ mà 2¹⁶⁰ <2¹⁶¹

nên 13⁴⁰ <2¹⁶¹