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Questions and Answers
What is the trigonometric function equal to the ratio of the side opposite the angle to the hypotenuse in a right-angled triangle?
What is the trigonometric function equal to the ratio of the side opposite the angle to the hypotenuse in a right-angled triangle?
- Cosecant
- Sine (correct)
- Tangent
- Cosine
What is the reciprocal of the sine function?
What is the reciprocal of the sine function?
- Cotangent
- Cosecant (correct)
- Secant
- Cosine
In the equation c^2 = a^2 + b^2 - 2ab cos(C), which trigonometric concept does 'cos(C)' represent?
In the equation c^2 = a^2 + b^2 - 2ab cos(C), which trigonometric concept does 'cos(C)' represent?
- Law of Cosines (correct)
- Unit Circle
- Pythagorean Theorem
- Law of Sines
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Study Notes
Trigonometric Functions
- Sine (sin) is the trigonometric function equal to the ratio of the side opposite the angle to the hypotenuse in a right-angled triangle.
Trigonometric Identities
- The reciprocal of the sine function is cosecant (csc).
Pythagorean Identity
- In the equation c^2 = a^2 + b^2 - 2ab cos(C), 'cos(C)' represents the cosine of angle C.
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