हल करना ( sin)^(3)2 pi /9-( sin)^(3) pi /9 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$${ \sin }^{ 3 } 2 \pi /9- { \sin }^{ 3 } \pi /9$$