5.3 The Fundamental Theorem of Calculus/31

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 \int_{0}^{\frac{\pi\}{4}}\sec^2(t)dt &= tan(\frac{\pi\}{4})-tan(0) &= 1-0 &= 1 }