AM-2516

Basic trigonometric identities

A Math · Secondary 4 · Easy · Basic trigonometric identities

1. $(\csc x + \cot x)^2$
2. $(\csc x - \cot x)^2$
3. $\csc^2 x + \cot^2 x$
4. $\csc^2 x - \cot^2 x$

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