Question

Rut gon phan so sau :

a)\(\frac{9^{14\times}25^5\times8^7}{18^{12}\times625^3\times24^3}\)

b)\(\frac{1\times3\times5\times...\times39}{21\times22\times23\times...\times40}\)

c)\(\frac{1\times3\times5\times...\times\left(2n-1\right)}{\left(n+1\right)\times\left(n+2\right)\times\left(n+3\right)\times...\times2n}\)

Answer 1

bài b vs c cx phân tích tương tự

Answer 2

ai tra loi duoc to se tich 2 dau

Answer 3

\(\frac{9^{14}.25^5.8^7}{18^{12}.625^3.24^3}=\frac{9^{12}.9^2.25^5.8^3.8^5}{9^{12}.2^{12}.25^6.8^3.3^3} =\frac{3^4.8^5 }{8^4.3^3}=3.8=24\)

Answer 4

Cau a la 24

Minh ko biet co dung ko nua