Advanced Math/Trigonometry Practice 3 ..7
PA Standards: 2.3;2.10 Anchors: A2;BL
'.-
1
-
15 Use your calculator to evaluate each. Round your answers to four decimal places.
1.
2. sec
230:' L SSSA
3. tan 5.7
235": * 0,9t q)
5. cos
55o: 0,Sabb
6. csc
230: - t, 3OSt{
8. cos
(-84'):
9. tan
(-139';: 0, tb|3
4. sin
7.
cot93: -7,1aeb
to. sin
4 :o.aglX
1
t-
13. cot
16
:
sin68": 0,tlt LaA
370": S,lr1
t3
1. sec
14. cos
+t- :
0, I O
' l,
qs,
bo39
l.9n: 0,qS I I
- O" b{17
12. tan
78":
15. csc
3.7n:
4, 7 0+6
alb
t
-21Draw the reference triangles and name two angles for each. 0o < 0 < 360o.
16. sin
0:
-0.3625
17. cos
0: -0.6724
lzg,3"
Jol ,3'
'ZZt,1'
Erl:al
aa?,?o
,3
4 rn: f r l9o"+al .3= eol.;5'
6-rl- : a = * a t"r+ 3a& 1b8,7"
t8.tan0:-0.5087
6slo
= \?Q,3"
Ntrtr.a -- l$o+*t'1,
19. cot 0
:0.3671
152,0"
3?3, o"
o'.
Qy:a=
20. sec
+ eroo
bq,to
141,<to
a7,oo
)6o*1-2,0,. l11,oo
Qf{-:.o --??.o'
tJ1,f
'33J,O"
0:4.3692
&-.r-'. @-= bq
fr"
a:ffi-" @-'l14.uttoflfto
21. csc 0 :2.7645
= 3'lQ,f,o
Jl,eo
ab,8"
lri.,yu
2-97,A"
br',
o=
?b,9o
Qr,a s Qt,)o
OG,o>ttd -al,?o
: s-t't'
7
22
-27
Draw the reference triangles and name two angles for each. 0 < 0 < 2r.
22. sinO:0.9585
23. cos
0:0.2266
l,z4
t],qrt
l,19
l,9G
0
6t',0't. 38
QE.iB
r;g = 1,31
Ogi S=ztt-l'V'l' +'q+
=t't'2't'- l'9b
25. cot9:0.4672
24.tan0:1.3698
tb
b,14
4, crf
0A: o:
o,qLl
QE:O;
TY*-o
)g
6rl.i e-,qll '- +'
0g'
l.l3
Qfl'.O:rr+
lJ}= 4'e8
27-csc0:2.6193
26.sec0:1.7336
D,qb
5,33
&g, ez
Ag,
0,1b
D: er.- 0.4b- S, a 3
&t-:g:o'al
Q-ulo:fP-
o'4=
''75