6. sin2e + tan?e + cos2e A. sin 0 C. cos3 e B. sec2 e D. tan2 e Tse the fundamenta1 identities to fnd th ot

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section: Chapter Questions
Problem 14RE
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please answer 6-8. Thank you!

Assessment
to
A. MULTIPLE CHOICE. Choose the one alternative that best
completes the statement or answers the question.
Odd one Out. Which of the following is not a/n...?
A. sin2 A +cos2 A = 1
C. 1 + cot2 A = csc2 A
B. sin A
= tan A • cos A
1. Identity
%3D
D. 1 sec2 a =
tan2 a
B. sin A + cos A =
A. sin A cos A = (1/2) sin
2A C. sin(-A) = sin A
Use the fundamental identities to simplify the expression.
%3D
2. Condition
D. tan A cos A / sin A
%3D
tan 0
3.
cot 0
A. cos³ e
B. tan2 e
C. sec2 e
D. sin 0
4. (sin 0 +cos 0) A. -sec2e B. 0
С. 1
D. 1- sin e
1 + 2 sin 0 cos 0
5. csc e cot 0
A. cot2 e
B. sec2 e
C. cos3 e
D. tan2 e
sec 0
6. sin2e + tan²e + cos²e
A. sin 0
C. cos3 e
D. tan² e
B. sec2 e
Use the fundamental identities to find the exact value.
c.
7. sin (10° + 50°)
А.
3
В.
6.
С.
D.
8. tan (155° + 35°) A. -/3
C. - V3
В. -2
С. -
D.
9. If cos a = -
13'
and tan a < 0, then find sin 2a.
А. 119
169
119
169
В.
120
120
С.
169
and cot A < 0, then find cos 2a.
D. -
169
10. If sin a =
5'
В. 7
25
A.
24
24
7
25
B. SOLVING. Find the exact value or expression being asked.
25
C. 25
С.
3
11. If tan B =
sin B sec B
cot B
find
12. Find cos (B+ C) given that sin B:
with C in QII.
1
5, with B in QIV, and sin C =
%3D
4
20
112
Transcribed Image Text:Assessment to A. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Odd one Out. Which of the following is not a/n...? A. sin2 A +cos2 A = 1 C. 1 + cot2 A = csc2 A B. sin A = tan A • cos A 1. Identity %3D D. 1 sec2 a = tan2 a B. sin A + cos A = A. sin A cos A = (1/2) sin 2A C. sin(-A) = sin A Use the fundamental identities to simplify the expression. %3D 2. Condition D. tan A cos A / sin A %3D tan 0 3. cot 0 A. cos³ e B. tan2 e C. sec2 e D. sin 0 4. (sin 0 +cos 0) A. -sec2e B. 0 С. 1 D. 1- sin e 1 + 2 sin 0 cos 0 5. csc e cot 0 A. cot2 e B. sec2 e C. cos3 e D. tan2 e sec 0 6. sin2e + tan²e + cos²e A. sin 0 C. cos3 e D. tan² e B. sec2 e Use the fundamental identities to find the exact value. c. 7. sin (10° + 50°) А. 3 В. 6. С. D. 8. tan (155° + 35°) A. -/3 C. - V3 В. -2 С. - D. 9. If cos a = - 13' and tan a < 0, then find sin 2a. А. 119 169 119 169 В. 120 120 С. 169 and cot A < 0, then find cos 2a. D. - 169 10. If sin a = 5' В. 7 25 A. 24 24 7 25 B. SOLVING. Find the exact value or expression being asked. 25 C. 25 С. 3 11. If tan B = sin B sec B cot B find 12. Find cos (B+ C) given that sin B: with C in QII. 1 5, with B in QIV, and sin C = %3D 4 20 112
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