find value of :-

[tex] { \frac{100}{64} }^{ \frac{ - 1}{2} } [/tex]

[tex] { \frac{1331}{1000}}^{ \frac{1}{3}} [/tex]

[tex] { \frac{6}{7} }^{ - 3} \times {\frac{6}{7} }^{2} [/tex]

Don't Spam please ​