Question by Phan Huy Toàn - Discuss with MathYouLike

Phan Huy Toàn

12/08/2017 at 10:20

Compare: 99^20 and 9999^10

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Phan Thanh Tinh Coordinator 12/08/2017 at 10:31

1^st way :

99²⁰ = (99²)¹⁰ = 9801¹⁰ < 9999¹⁰

2^nd way :

99²⁰= 99¹⁰ x 99¹⁰ ; 9999¹⁰ = 99¹⁰ x 101¹⁰

Since 99¹⁰ < 101¹⁰, 99²⁰ < 9999¹⁰
Phan Huy Toàn selected this answer.

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