Calling
{{EqualOrNegativeIdenticalTrigonometricFunctionsSolutions}}
will display
{{EqualOrNegativeIdenticalTrigonometricFunctionsSolutions|includeTableDescription=true}}
will display:
The table below shows how two angles θ {\displaystyle \theta } and φ {\displaystyle \varphi } must be related if their values under a given trigonometric function are equal or negatives of each other.