Get in here math fags

GENIUS

How did you do that??????

tantan(a) - tantan(x)

yes

-tan(tan(t)) dt

HOW

nope. it's this:

nevermind. Thats wrong

This is correct,

I just don't understand how this wizard crafted this

No, it's -tan(tan(x))

Go look up fundamental theorem of calculus.

Let F be the integral of tan(tan(x))

Then you've got d/dx F(a) - F(x)

F(a) is a constant with respect to X so that disappears.

So you've got -d/dx F(x).

We defined F as the integral of tan(tan(x)), by definition -d/dx F(x) = -tan(tan(x))

Thank you so much for helping me out. This explainaition will really help me out in the future

it's a formula. The integral from a to x of function f is the function which, when derivated, equals to f, and is equal to 0 when x=a. since x was on the lower side here, you just had to reverse it with a minus sign.

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