Giải hộ mình với ạ mong mọi người giúp mình cảm ơn November 13, 2020 by Maris Giải hộ mình với ạ mong mọi người giúp mình cảm ơn
4^6.9^5+6^9.120/8^4.3^12-6^11 =2^12.3^10+3^9.3.40.2^9/2^12.3^12-2^11.3^11 =2^12.3^10(1+5)/2^11.3^11(2.3-1) =2.6/3.5=4/5 Reply
Đáp án: \(\dfrac{4}{5}\) Giải thích các bước giải: \(\begin{array}{l}\dfrac{{{4^6}{{.9}^5} + {6^9}.120}}{{{8^4}{{.3}^{12}} – {6^{11}}}}\\ = \dfrac{{{{\left( {{2^2}} \right)}^6}.{{\left( {{3^2}} \right)}^5} + {2^9}{{.3}^9}{{.2}^3}.3.5}}{{{{\left( {{2^3}} \right)}^4}{{.3}^{12}} – {2^{11}}{{.3}^{11}}}}\\ = \dfrac{{{2^{12}}{{.3}^{10}} + {2^{12}}{{.3}^{10}}.5}}{{{2^{12}}{{.3}^{12}} – {2^{11}}{{.3}^{11}}}}\\ = \dfrac{{{2^{12}}{{.3}^{10}}\left( {1 + 5} \right)}}{{{2^{11}}{{.3}^{11}}\left( {2.3 – 1} \right)}}\\ = \dfrac{{2.6}}{{3.5}} = \dfrac{4}{5}\end{array}\) Reply
4^6.9^5+6^9.120/8^4.3^12-6^11
=2^12.3^10+3^9.3.40.2^9/2^12.3^12-2^11.3^11
=2^12.3^10(1+5)/2^11.3^11(2.3-1)
=2.6/3.5=4/5
Đáp án:
\(\dfrac{4}{5}\)
Giải thích các bước giải:
\(\begin{array}{l}
\dfrac{{{4^6}{{.9}^5} + {6^9}.120}}{{{8^4}{{.3}^{12}} – {6^{11}}}}\\
= \dfrac{{{{\left( {{2^2}} \right)}^6}.{{\left( {{3^2}} \right)}^5} + {2^9}{{.3}^9}{{.2}^3}.3.5}}{{{{\left( {{2^3}} \right)}^4}{{.3}^{12}} – {2^{11}}{{.3}^{11}}}}\\
= \dfrac{{{2^{12}}{{.3}^{10}} + {2^{12}}{{.3}^{10}}.5}}{{{2^{12}}{{.3}^{12}} – {2^{11}}{{.3}^{11}}}}\\
= \dfrac{{{2^{12}}{{.3}^{10}}\left( {1 + 5} \right)}}{{{2^{11}}{{.3}^{11}}\left( {2.3 – 1} \right)}}\\
= \dfrac{{2.6}}{{3.5}} = \dfrac{4}{5}
\end{array}\)