HW11 - MAC1114 - Homework 11 Due Tuesday - March 29 1. Show...

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Unformatted text preview: MAC1114 - Homework 11 Due Tuesday - March 29 1. Show that cot(u + v ) = cot u cot v − 1 (hint: use the sum identity for tangent) cot u + cot v 2. Let f (x) = sin x. Verify the following identity used in calculus: f (x + h) − f (x) = sin x h cos h − 1 h − sin x sin h h 1 2 3. Let sin α = 3 and cos β = 5 . Evaluate each of the six trig functions at α + β , i.e., nd sin(α + β ), cos(α + β ), etc. (hint: only use sum identities for sin and cos, get the rest of them in an easier way) 1 ...
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This note was uploaded on 06/10/2011 for the course MAC 1114 taught by Professor Gentimis during the Spring '11 term at University of Florida.

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