Verify That Each Equation Is an Identity $$6 \csc ^ { 2 } \theta - 4 \cot ^ { 2 } \theta = 2 \csc ^ { 2 } \theta + 4$$

Verify that each equation is an identity.
- $$6 \csc ^ { 2 } \theta - 4 \cot ^ { 2 } \theta = 2 \csc ^ { 2 } \theta + 4$$