\({\left[ {{{\left( { - \frac{5}{6}} \right)}^{ - 5}}} \right]^3} \) యొక్క విలువను కనుగొనండి?
1
\({\left( { - \frac{5}{6}} \right)^{15}}\)
2
\({\left( { \frac{5}{6}} \right)^{15}}\)
3
\({\left( { \frac{5}{6}} \right)^{-15}}\)
4
\({\left( {- \frac{5}{6}} \right)^{-15}}\)