Verify That Each Equation Is an Identity$$\frac { 1 - \cot ^ { 2 } \theta } { 1 + \cot ^ { 2 } \theta } + 1 = 2 \sin ^ { 2 } \theta$$

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The Answer of Verify That Each Equation Is an Identity$$\frac { 1 - \cot ^ { 2 } \theta } { 1 + \cot ^ { 2 } \theta } + 1 = 2 \sin ^ { 2 } \theta$$

Verify That Each Equation Is an Identity $\frac { 1 - \cot ^ { 2 } \theta } { 1 + \cot ^ { 2 } \theta } + 1 = 2 \sin ^ { 2 } \theta$