\(a,\left(\frac{1}{2}\right)^M=\frac{1}{32}\)
\(\Leftrightarrow\left(\frac{1}{2}\right)^M=\left(\frac{1}{2}\right)^5\)
\(\Leftrightarrow M=5\)
\(b,\frac{343}{125}=\left(\frac{7}{5}\right)^n\)
\(\Leftrightarrow\left(\frac{7}{5}\right)^3=\left(\frac{7}{5}\right)^n\)
\(\Leftrightarrow n=3\)
a) \(\left(\frac{1}{2}\right)^m=\frac{1}{32}\)
\(\Leftrightarrow\left(\frac{1}{2}\right)^m=\left(\frac{1}{2}\right)^5\)
\(\Leftrightarrow m=5\)
b) \(\frac{343}{125}=\left(\frac{7}{5}\right)^n\)
\(\Leftrightarrow\left(\frac{7}{5}\right)^3=\left(\frac{7}{5}\right)^n\)
\(\Leftrightarrow n=3\)
#)Giải :
a) \(\left(\frac{1}{2}\right)^m=\frac{1}{32}\)
Mà \(\frac{1}{32}=\left(\frac{1}{2}\right)^5\)
\(\Rightarrow\left(\frac{1}{2}\right)^m=\left(\frac{1}{2}\right)^5\Rightarrow m=5\)
b) \(\frac{343}{125}=\left(\frac{7}{5}\right)^n\)
Mà \(\frac{343}{125}=\left(\frac{7}{5}\right)^3\)
\(\Rightarrow\left(\frac{7}{3}\right)^3=\left(\frac{7}{3}\right)^n\Rightarrow n=3\)
#~Will~be~Pens~#
\(\left(\frac{1}{2}\right)^M=\frac{1}{32}\)
\(\Rightarrow\left(\frac{1}{2}\right)^M=\left(\frac{1}{2}\right)^5\)
\(\Rightarrow M=5\)
\(\frac{343}{125}=\left(\frac{7}{5}\right)^M\)
\(\Rightarrow\left(\frac{7}{5}\right)^3=\left(\frac{7}{5}\right)^M\)
\(\Rightarrow M=3\)
~ Hok tốt ~