Question

so sánh:

a)10²⁰và90¹⁰

b)64⁸và 16¹²

Answer 1

a) 10²⁰ và 90¹⁰

ta có: 10²⁰ = (10²)¹⁰ = 100¹⁰

vì 100 > 90 nên 100¹⁰ > 90¹⁰

vậy 10²⁰ > 90¹⁰

b) tương tự nhé

ok mk nhé!!! 5656757567687686712676576568768763575475437445756725676568

Answer 2

a) 10²⁰=(10²)¹⁰=100¹⁰>90¹⁰

b) 64⁸=(4³)⁸=4²⁴=(4²)¹²=16¹²

Answer 3

a) \(10^{20}=\left(10^2\right)^{10}=100^{10}\)

Vì: \(100^{10}>90^{10}\Rightarrow10^{20}>90^{10}\)

b) \(64^8=\left(4^3\right)^8=4^{24}\)

\(16^{14}=\left(4^2\right)^{14}=4^{28}\)

Vì: \(4^{24}< 4^{28}\Rightarrow64^8< 16^{12}\)

Answer 4

b ) Ta có :

64⁸ = ( 8² )⁸ = 8¹⁶ = ( 2³ )¹⁶ = 2⁴⁸

16¹² = ( 2⁴ )¹² = 2⁴⁸

Vì 2⁴⁸ = 2⁴⁸ nên 64⁸ = 16¹²

Answer 5

a) \(10^{20}=\left(10^2\right)^{10}=100^{10}\); \(90^{10}\)giữ nguyên

VÌ \(100^{10}>90^{10}\)nên \(10^{20}>90^{10}\)

b) \(64^8=\left(4^3\right)^8=4^{24}\)

\(16^{14}=\left(4^2\right)^{14}=4^{28}\)

VÌ \(4^{24}< 4^{28}\)nên \(64^8< 16^{12}\)