Trigonometric Expression Simplification Quiz

The video tutorial guides viewers through simplifying a complex trigonometric expression to a single trigonometric function. It begins by converting all trigonometric functions to sines and cosines, then addresses complex fractions by using the least common denominator. The process involves multiplying and canceling terms to simplify products, followed by factoring the numerator and denominator. The final simplification results in the expression being reduced to the cotangent function.

What is the first step in simplifying a trigonometric expression?

• Use the Pythagorean identity

• Find the derivative

• Integrate the expression

• Convert all functions to sines and cosines

Tags

CCSS.HSF.TF.A.4

What is the expression for secant x in terms of cosine x?

• Cosine x over sine x

• 1 over cosine x

• Sine x over cosine x

• 1 over sine x

Tags

CCSS.HSF.TF.A.4

What is a complex fraction?

• A fraction within a fraction

• A fraction with a radical

• A fraction with trigonometric functions

• A fraction with a polynomial

What is the least common denominator used in the simplification process?

• Cosine squared x

• Sine squared x times cosine squared x

• Sine x times cosine x

• Sine squared x

Why do we multiply the top and bottom of a complex fraction by the least common denominator?

• To change the expression

• To simplify the expression

• To make the expression more complex

• To factor the expression

What common factor is found in the numerator during the factoring process?

• Cosecant x

• Tangent x

• Cosine x

• Sine x

What common factor is found in the denominator during the factoring process?

• Tangent x

• Cosine x

• Sine x

• Secant x

What identity is used to simplify sine squared x plus cosine squared x?

• Sine squared x equals cosine squared x

• Sine squared x plus cosine squared x equals one

• Sine x plus cosine x equals one

• Sine x equals cosine x

What is the final simplified form of the given trigonometric expression?

• Sine x

• Cosine x

• Tangent x

• Cotangent x

Tags

CCSS.HSF.TF.A.4

What is the relationship between cosine x over sine x and cotangent x?

• They are inverses

• They are reciprocals

• They are unrelated

• They are equal

Tags

CCSS.HSF.TF.A.4