6.2 Trigonometric Functions: Unit Circle Approach/98

$f(\theta )=\sin(\theta )$
$g(\theta )=\cos {(\theta )}$
$\theta =60^{\circ }$

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle g\left(\frac{\theta}{2}\right)=g\left(\frac{60}{2}\right) = g(30)}