Download 13 Questions with Solution of Precalculus Mathematics - Midterm Exam | MATH 121 and more Exams Pre-Calculus in PDF only on Docsity!
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the equation on the interval 0= 6 < 2n.
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1) sin(4@) =
ERR
Find the exact value of the expression.
2) tan-1 (4)
A
Tu
4 Boa
1)
B)O
is
DOF
» wey,
ee'2,
2)
Sa 71
oF D>
Solve the equation on the interval 0< 6 < 27. Sh ow Work
3) esc? 6-4 csc 6=0 3)
non ma 5m nm 3m nm 5m
Spas DET ee
eset = ¢usce
= csce (esf@-a)ao
\ \
aL = ~~ 4 =0
ene = SRS ee Se
@pno slit sn*6 = &
sig cad HOSS. FO Shad
*@
Za
> =.
sho a
Find the exact solution of the equation. Show Work
4) 3 tan-1Qx) =2 4
ayxea8 Byx=4 p)x-28
dear t(exre S
zs ue =
Find the area of the triangle. If necessary, round the answer to two decimal places. S h cw Worle
10) 10)
Cc
B
a
A) ALTA "B) 195.03 Lake D) 4.86
1?
Faron & freomta,
sa diarbre) = CE4H6I =
or
ds Gb ey = hf Of-mak-out-e
fu
Pre
at
- hin DE
= (Esa Bad! lage
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Establish the identity. Show Work
costu .
1)1-7Taag a in 11)
c= tcSho OF shar she UTS a Cin een
Lees = (= ow i=sy BEG
SS te Rite
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem. On ow Work
12) John (whose line of sight is 6 ft above horizontal) is trying to estimate the height of a tall oak tree. 12)
He first measures the angle of elevation from where he is standing as 35°. He walks 30 feet closer to
the tree and finds that the angle of elevation has increased by 12°. Estimate the height of the tree
rounded to the nearest whole number.
A) 67 ft B) 86 ft 8D D) 90 ft
C a1? A- &
= Bo" yt (33° = 2
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Shot. eh
on Ce
escA =
= Ae
BC
= Box 5535" x Bb fe
: ~ gv te?
ohn Cueet taR® i t
: = aon (go BY = 828% SS CET S=60.53 fie
eigen = Rt GR =|\C6, 52 <*
Express the product as a sum containing only sines or cosines.
13) sin(68) sin@6) 13)
A) sin2(1862) Co APosis0) ~ cos(98)]
Q $lsino9) + c05(30)] dD) Fle03(98) ~ cos(30)]
Sdn (od) (PD = Lost po ceatatpy
> TK Ke T+ Goejy=—t Caen - Yer I
