Deriving the Derivative Formulas for Tangent, Cotangent, Secant, Cosecant, ArctanA series of free Calculus Videos.
Deriving the Derivative Formulas for Tangent, Cotangent, Secant, Cosecant Many people memorize these formula but do not really understand where they come from. I show how you just use the derivative formulas for sine and cosine along with the quotient rule and chain rule to derive the rest!
Deriving the Derivative of y = arctan (x) In this video, I show how to derive the derivative formula for y = arctan(x). This is a super useful procedure to remember as this is how many of the inverse derivative formulas are derived! All we need to do is use implicit differentiation and some trig identities.
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