Question

Tính hợp lý

a) \(5^6.4^3.19\)

b) \(123.25^4.16^2\)

c) \(73.5^{12}.8^4\)

d) \(1111.8^4.25^7\)

Answer 1

a) \(5^6.4^3.19=5^6.\left(2^2\right)^3.19=\left(5.2\right)^6.19=1000000.19=19000000\)

b)\(123.25^4.16^2=123.5^8.2^8=123.\left(5.2\right)^8=123.10^8=123.100000000=12300000000\)

c) \(73.5^{12}.8^4=73.5^{12}.\left(2^3\right)^4=73.\left(5.2\right)^{12}=73.10^{12}=73.1000000000000=73000000000000\)

d)\(1111.8^4.25^7=1111.\left(2^3\right)^4.\left(5^2\right)^7=1111.2^{12}.5^{14}=\left(1111.25\right).\left(2.5\right)^{12}=27775.10^{12}\)

\(=27775.1000000000000=27775000000000000\)

Answer 2

a)5⁶x4³=1000000

1000000x19=19000000

b) 12300000000

c) 73000000000000

d) Ko ra đc