Bài làm
A = 3¹° . 11 + 3¹° . 5 / 39 . 2⁴
A = 3¹° . ( 11 + 5 ) / 39 . 16
A = 3¹° . 16 / 39 . 16
A = 3¹° / 39
A = 3
Vậy A = 3
Mk lm bằng đt nên k vt đc phân số nha.
A=3^10.11+3^10.5/3^9.2^4
A=3^10.(11+5)/3^9.2^4
A=3^10.16/3^9.16
A=3^10/3^9
A=3
A=\(\frac{3^{10}\cdot11+3^{10}\cdot5}{3^9\cdot2^4}\)
A=\(\frac{3^{10}\cdot\left(11+5\right)}{3^9\cdot2^4}\)
A=\(\frac{3^{10}\cdot16}{3^9\cdot2^4}\)
A=\(\frac{3^{10}\cdot2^4}{3^9\cdot2^4}\)
A=\(\frac{3^{10}}{3^9}\)
A=3
\(A=\frac{3^{10}.11+3^{10}.5}{3^9.2^4}\)
\(=\frac{3^{10}.\left(11+5\right)}{3^9.2^4}\)
\(=\frac{3^{10}.16}{3^9.16}\)( chúng ta gạch bỏ 16 )
\(=3\)
