5.3 The Fundamental Theorem of Calculus/15

Use part 1 of the FTC to find the derivative of the function: Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle y=\int _{0}^{tan(x)}{\sqrt {t+{\sqrt {t}}}}dt}