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...Math week part trigonometric functions limits and derivatives please take a moment to just breathe we dene sin cos tan using the unit circle note that by similar triangles in this section review prove lim sinh h derive derivative of several will show compute need following d dt t as evidence rst limit recall arc angle has length line segment representing appears have nearly position mass same bit p velocity proof squeeze theorem for interval proofs tanh so cosh are since also these formulas x xcosh cosxsinh xsinh cosxcosh use denition sinx cosx dx computation shows sinxcosh...