Question

tính nhanh

1 (10 mũ hai.13 mũ 2106+69.13 mũ 2016):13 mũ 2017

2 3 mũ 2019:(3 mú 2020-24.3 mũ 2017)

NHANH GỌN LẸ Ạ

tks

 

 

 

Answer 1

\(10^2.13^{2016}+69.13^{2016}:13^{2017}\)

=\(\left(10^2+69\right).13^{2016}:13^{2017}\)

\(=169.13^{2016}:13^{2017}\)

=\(13.13.13^{2016}:13^{2017}\)

=\(13^{2018}:13^{2017}=13\)

Answer 2

\(3^{2019}:\left(3^{2020}-24.3^{2017}\right)\)

\(3^{2019}:\left(3^{2017}.3^3-24.3^{2017}\right)\)

\(=3^{2019}\left(3^{2017}.27-24.3^{2017}\right)=3^{2019}:\left(3.3^{2017}\right)=3^{2019}:3^{2018}=3\)