8th Class Mathematics Sample Paper Mathematics Sample Paper - 7

  • question_answer
    Simplify: \[{{\left( \frac{1}{5} \right)}^{45}}\times {{\left( \frac{1}{5} \right)}^{-60}}-{{\left( \frac{1}{5} \right)}^{28}}\times {{\left( \frac{1}{5} \right)}^{-43}}\]

    Answer:

    \[{{\left( \frac{1}{5} \right)}^{45}}\times {{\left( \frac{1}{5} \right)}^{-60}}-{{\left( \frac{1}{5} \right)}^{28}}\times {{\left( \frac{1}{5} \right)}^{-43}}\]
    \[\Rightarrow \]   \[{{\left( \frac{1}{5} \right)}^{45-60}}-{{\left( \frac{1}{5} \right)}^{28-43}}\]
    \[\Rightarrow \] \[{{\left( \frac{1}{5} \right)}^{-15}}-{{\left( \frac{1}{5} \right)}^{-15}}\]
    \[\Rightarrow \,{{(5)}^{15}}-{{(5)}^{15}}\]
    \[\Rightarrow 0\]


You need to login to perform this action.
You will be redirected in 3 sec spinner