Question

tìm x (simple)

1/27=(1/9)^x

Answer 1

mũ 3

dễ mà!

Answer 2

\(\frac{1}{27}=\left(\frac{1}{9}\right)^x\)

\(\Rightarrow\frac{1}{27}=\left(\frac{1}{3}\right)^{2x}\)

\(\Rightarrow\left(\frac{1}{3}\right)^3=\left(\frac{1}{3}\right)^{2x}\)

\(\Rightarrow2x=3\)

\(\Rightarrow x=\frac{3}{2}\)

Answer 3

vì dễ nên ms ns là simple chớ!!!