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TrigReview

# TrigReview - Math 21A Kouba Exact Trig Values(Plasma...

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Unformatted text preview: Math 21A Kouba Exact Trig Values (Plasma memorize these at your earliest convanieuce-.} degrees radians cos 9 sin 0 “tan 8 00 o 1 0 0 300 m6 {372 1/2 1/ 3 450 m4 {”212 ﬁn 1 600 m3 1x2 43/2 4.? 9O ‘3’ TE! 2 0 1 undcﬁn ed COSWE AND 8\NE VALUES ON THE UNIT OIRGLE F urn-ruin: for Us: in Trigonometry Pythagorean refatfans sin’a 4- cos‘a = I, l + lan’a .4 nglebmm and angle-diﬁ'crcnce relations sin (a + £3) =r sinacosﬂ + coscrsint? sin (a -— ﬂ) cos(a 4- ﬂ) cos(a - ﬂ) tank: +5} Lan(a — 5) coda + 5) cot (a - ,6) sin (a + .8) Sin (cs — ,6} = Sinla -~ sinzﬁ a: sinacosﬁ — cosasinﬁ COSacosﬁ— sinasinﬁ c05acos£3+sinasinf3 Lama + Lanﬂ I—- Lanalanﬂ tana~ tang? l+tanalanﬁ cotﬁcota—l Cotﬂ-E-COta cotﬂcota-l»! «315-com: Double-angle relations sin2a = 25inac03a = 0052:: = cos’a - sinza - 200520: -— I = I -— 25in3a tan 2:: == 2 Lan a l — tan’a Etana 1+ Lanlar , 0012a.- =2 sec’a.‘ I + €012“ = csc’a c0533 —~ cosla costar + .B)cos (a - ,8) = COSZQ -— sinzﬁ = ceszﬁ - sinza colza —— l 2601a l - tanza + tanza ...
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