Flashcards
Trigonometric Functions
Flashcards do conjunto (23)
- 1—D
- 2—A
- 3—B
- 4A ladder leaning against a wall makes an angle of 45º with the ground. If the length of the ladder is 20 feet, find the approximate distance of the foot of the ladder from the wall. A. 20 feet B. 16.6 feet C. 14.14 feet D. 10 feetC.
14.14 feet - 5In a right triangle, if the hypotenuse is equal to 16 feet and the side adjacent to ∠θ is equal to 5 feet, what is the approximate measurement of ∠θ? A. 18° B. 75° C. 15° D. 72°D.
72° - 6—B
- 7In a right triangle, if ∠θ =53° and the side opposite to ∠θ is equal to 2.3 meters, what is the approximate length of the hypotenuse? A. 1.8 meters B. 2.9 meters C. 3.8 meters D. 0.3 metersB.
2.9 meters - 8—B
- 9—C
- 10—D
- 11—B
- 12—C
- 13What is the value of arcsin (-0.18)? Use a calculator to determine the answer. A. -0.18 B. -0.75 C. 1.39 D. 0.18A.
-0.18 - 14Imagine you are standing 20 feet away from a tree that is 80 feet tall. The angle that your feet make with the top of the tree is °____.76
- 15—B.
sin θ
- 16What is the expanded equivalent of sin(a + b)? A. sin a cos b – cos a sin b B. sin a cos b + cos a sin b C. cos a cos b – sin a sin b D. cos a cos b + sin a sin bB.
sin a cos b + cos a sin b - 17—D.
150°
- 18—D
- 19—B
- 20—B
- 21Which expression is equivalent to sin(1.8x) sin(0.5x)? A. 0.5[sin(2.3x) + sin(1.3x)] B. 0.5[sin(2.3x) − sin(1.3x)] C. 0.5[cos(1.3x) − cos(2.3x)] D. 0.5[cos(2.3x) − cos(1.3x)]C.
0.5[cos(1.3x) − cos(2.3x)] - 22—B
- 23—B
Informações
- Descrição
- - The Unit Circle - Problems Involving Right Triangles - Trigonometric Symmetry - Inverse Trigonometric Functions - Sum, Difference, and Cofunction Identities - Double-Angle and Half-Angle Identities - Product-Sum and Sum-Product Identities - Solving Trigonometric Equations
- Criado por
- Elexali Olayvar
- Visualizações
- 21
- Avaliação