Analyzing related rates problems: equations (trig) | AP Calculus AB | Khan Academy

Finding the rate of change of an angle that a falling ladder forms with the ground.

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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[WizardToby]

I learned more from this than I did in a day of calculus. Thank you. You explain it so well

[DanielR-MIDI]

would you get the same result in degrees?

[youtubesubtitles]

shouldn't that answer be at time t0 instead of the general rate of change of the angle at any time?, I mean if you replaced than sin with the information at some specific point, cause the rate of change of the angle should be a function of t, not a constant.