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# Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. $\displaystyle y = \int^{\pi/4}_{\sqrt{x}} \theta \tan \theta \,d\theta$

## $-\frac{1}{2} \tan \sqrt{x}$

Integrals

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### Video Transcript

before we took the fundamental theory. Kokkalis. What's really worth this? With a negative sign to make it easier to read and to manipulate. Now we know why one we can take the derivative which gives us why want It's negative 1/2 chance squirt of X.

Integrals

Integration

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