![]() ![]() These functions have the prefix co- in them for a reason: cosine is the sine of the co-angle, cotangent is the tangent of the co-angle, and cosecant is the secant of the co-angle. 1 Free Download of Trig Identities Cheat Sheet (PDF) 2 More Resources for Teaching Trig Identities. ![]() Useful fact :lf a>O then l:idx converges if p>1 and diverges for p<1. ![]() Then the derivatives of $\cos$, $\cot$, and $\csc$ can be memorised with not much more effort. formula to convert into an integral involving trig functions x, a, ) xf. Here is a trick I use to remember the derivatives and antiderivatives of trigonometric functions. ![]()
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