A) \[{{l}_{1}}+{{l}_{2}}+{{l}_{3}}\]
B) \[\frac{{{l}_{1}}+{{l}_{2}}+{{l}_{3}}}{3}\]
C) \[{{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{3}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{3}}\]
D) \[{{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{4}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{4}}\]
Correct Answer: D
You need to login to perform this action.
You will be redirected in
3 sec