# 7.8 - 7.8'Trigonometric Equations(11 1 Solve Trigonometric...

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Unformatted text preview: 7'.8 'Trigonometric Equations (11) 1. Solve Trigonometric Equations Quadratic in Form 2. Solve Trigonometric Equations Using Identities 3. Solve Trigonometric Equations Linear in Sine and Cosine 4. Solve Trigonometric Equations Using a Graphing Utility Solve each equation on the intervalo: a < 27:. cosx+cosxtanx= 0 (0%): + Coy/x .gioY : D ) ________.. qty- “ 2. COM qmloa—Coae; I COS/K + gmx —; o \ ' g T ‘ ﬁCf/Ltowa iﬁCti'i/W gldgg ggl‘lngcoge r swag 5. 3‘ _ Z - [Cmmsmﬂ :— 0 (W5): Gambit? Cat-sax + stfx 4a Maw-\$me : o r +3CasxﬁinXZO cine/91L h C J + %‘ ax 0 Pa)“; bit"jg> ,lﬁ_ :- gtn‘fiLX :- ﬁ—I if q r we 1 an ..- r L _ 3r _ ;___u f ax g 3‘7 X Lb I L/ 2coszx+2csosx+ﬁoosx=—\/§ aCoSZx + aco'ﬁsx +-J’2:Cosx +j3. :0 L;_# . aﬂogx‘(€03X1‘i)-§- d1(Coﬁ>X-—H ) I 0 1m x i _ 3 a . e . a.” > :0 1‘ ,- “I: q (pas X+l ){oleosx mm; Cosx :: we: atosx : 1E GOSX: “'92; 5k 2LT sn- 200t2x+500tx—12=0 5119+ 614—151 :0 /\ 310.0% mugﬁﬁﬁﬂi O Kama) (“+4320 ERR—'3: :0 PWLE '30 Pr :— 3;— 97-" 5k CO-EX: .1 COL—7‘: FL} Cnsxwi m I Sinx a Cosx‘:___L}LSUDX a603¥:3°>fnx t1" W12, U}: coth—cscx—lzo éobg+i Cecla—I n—Cgcem—q :0 6096}: Giselarcscawa :o LQL Csc‘t}: LL [kl—alkea :O (u—3)(bL-+I7:O Li: 3 (A: ---I C919 : a C\$C9 I.“ "I “I”; Z J..— : "I 31.09 S’lﬁné} swap : J9: L1“: 531 i e ’ c) / a '2_ .ccha— 6939 —-—{ ...
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7.8 - 7.8'Trigonometric Equations(11 1 Solve Trigonometric...

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