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
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