Derivatives of Trig Functions
With this section we�re going to start looking at the
derivatives of functions other than polynomials or roots of polynomials. We�ll
start this process off by taking a look at the derivatives of the six trig
functions. Two of the derivatives will be derived. The remaining four are left
to the reader and will follow similar proofs for the two given here.
Before we actually get into the derivatives of the trig
functions we need to give a couple of limits that will show up in the derivation
of two of the derivatives.
Fact
See the
of Trig Limits section of the Extras chapter to see the proof of these two
limits.
Before we start differentiating trig functions let�s work a
quick set of limit problems that this fact now allows us to do.
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