Tutoring calculus, trig identities can give choices when performing derivatives. The tutor mentions an example. Example: find derivative of y=sinxcosx Solution method 1: product rule (see my post here.) y’ = (sinx)’cosx + sinx(cosx)’ = cosxcosx – sinxsinx = (cosx)^2 …
Calculus: trig derivative: product rule or identity substitution? Read more »
Tutoring calculus, transcendental functions are important. The tutor mentions some examples of derivatives with them. Transcendental functions are ones that can’t be written in polynomial form. Some examples: sinx, logx, ex. Importantly, their derivates don’t collapse the way those of …
Calculus: transcendental functions and derivatives Read more »
Tutoring calculus, this might be the first derivative rule you need to emphasize. The tutor opens up the discussion…. The product rule is not the first derivative rule people learn, but it might be the first non-intuitive one. The other …