Exploring Adding and Subtracting Rational Expressions

What does trigonometry study?

• The relationship between circle radii and diameters

• The relationship among side and angle measures in triangles

• The calculation of circle circumferences

• The study of square roots and their properties

What is the definition of sine in a right triangle?

• Opposite over hypotenuse

• Opposite over adjacent

• Adjacent over hypotenuse

• Hypotenuse over opposite

What is the reciprocal of cosine known as?

• Cosecant

• Secant

• Cotangent

• Sine

Which function is defined as adjacent over opposite?

• Secant

• Sine

• Tangent

• Cotangent

How do you find the missing side in a right triangle using trigonometric functions?

• Using the cosine function only

• Using the tangent function only

• Calculating the area of the triangle

• Applying the Pythagorean theorem

What is the sine of an angle in a right triangle defined as?

• Adjacent over hypotenuse

• Opposite over adjacent

• Opposite over hypotenuse

• Hypotenuse over opposite

What does rationalizing the denominator involve?

• Subtracting the square root from the numerator

• Adding the square root to the denominator

• Multiplying the numerator and denominator by the square root of the denominator

• Converting the denominator to a simpler form

What is the secant of an angle in a right triangle defined as?

• Hypotenuse over adjacent

• Adjacent over opposite

• Opposite over hypotenuse

• Adjacent over hypotenuse

Which trigonometric function is the reciprocal of tangent?

• Cosine

• Secant

• Sine

• Cotangent

How is the cosecant of an angle calculated in a right triangle?

• Hypotenuse over opposite

• Opposite over hypotenuse

• Adjacent over opposite

• Adjacent over hypotenuse