Understanding Trigonometric Ratios and Functions

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of sine in a right triangle?
Back
Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse.
2.
FLASHCARD QUESTION
Front
What is the definition of cosine in a right triangle?
Back
Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse.
3.
FLASHCARD QUESTION
Front
What is the definition of tangent in a right triangle?
Back
Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side.
4.
FLASHCARD QUESTION
Front
What mnemonic helps remember the trigonometric ratios?
Back
Soh Cah Toa.
5.
FLASHCARD QUESTION
Front
What is the sine ratio for angle Z if sinZ=5/13?
Back
The sine ratio for angle Z is 5/13.
6.
FLASHCARD QUESTION
Front
How do you find Cos(A) if given the opposite side and hypotenuse?
Back
Use the formula cos(A) = adjacent/hypotenuse.
7.
FLASHCARD QUESTION
Front
What is the relationship between sine and cosine for complementary angles?
Back
sin(θ) = cos(90° - θ).
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