6.2 Trigonometric Functions: Unit Circle Approach/39

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 \sin{(90^{\circ})}-3\tan{(180^{\circ})}= 4(1)-3(0)=4 }