8/12/2019 Trig Final Review Day 3 4 Key

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KTYFinal ExamReviewNO CALCULATOR

Find the exact value./

1) sih-1 - {,,3-?_4) esc 120e

7)'tan.45'II

13),csc * ).03

2) sin 225',/3tt -)) SeC -4

3)cos,90" 0

Qcotb (l(zx(ut$3

1,4) cos 2r I -\ L

s)secf L1l) sin lla'6

9)tao 0? St'Z\i^ -5o 4 -\ \

1

rgcos -f t4)cot*, qFind thsvalue in radians. Find one coteiininal angle in degees.16)ii;,@q rai?e" +, 6 h"- i*,

(#is,V*l**"" ffia'fymegorean 'ut6*u-t' "'bryidentities? Fhd trrce ways to express each ofthem..

8/12/2019 Trig Final Review Day 3 4 Key

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Identifftheamplitudq period, and shifts of each function.

fL, ,4., L :25)y=-cos'(4x*2) :((hP, I bk,z ?_ 20 t=Z+Ssin(1)**P 2o)=16.t o(L

'.,38)y = 2cos(x) +3WIe -')\?

ou,,/;5-r,- fl'+)&)

Gmn| the fimction over one interval. show au teypoints and.laber ttre gaph.29)y = sin(3x) -_ 1 30)y= -2cos ,(Zx +x)

27)y=4sin(3r)-i'*v +oil 0q'Jo[q^r" {.

, .t j

Given the right trianele at righ fiail:3l)sins-r ,k 32)cos r=k

vrh-*.i

- \ ")csc(20)w 34) cos(20) qq 5y,I G{ --*'5\@-\w \u9bv

8/12/2019 Trig Final Review Day 3 4 Key

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Solve the oquations: in the interval [0, 2n).35)3tlqn\c = to*x O ,y",T,f U31^,n(Y'l^x=, :g+^nx(*an'r- Q,o ?4t4n7r.6 kn*- * t3fi secxcscx = ?cs.cx

SocY(St X"' ') cec E " ocs c* (*x -z)=','ff *7rli,-,3r,?,

?_,

l-r."5 e

3$2sin2x=2*cosxg,-- l*{lX=,/'*t'tlt