Trigonometric & Hyperbolic Identities

${\cos }^2(x)+{\sin }^2(x)=1$ $1+{\tan }^2(x)={\sec }^2(x)$ ${\cot }^2(x)+1=cose{c}^2(x)$

${\cosh }^2(x)-{\sinh }^{2}x=1$ $1-{\tanh }^2(x)=sec{h}^2(x)$ ${\coth }^2(x)-1=cosec{h}^2(x)$