Any Humble soul? Just a small doubt. I swear.

Test Preparation AP Test Preparation
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<p><a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;

<p>In the first part,while calculating speed why have they chosen the radian mode to calculate arctan(t/1+t)
How does one differentiate question to question?
I got it all wrong cause I had it in degree mode :(</p>

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<p>Calculus is all radians. There are no degrees. Degrees are not used for anything at all in calculus.</p>

<p>Yes, it is unfortunate. That’s why I memorized all the trig functions with radian values.</p>