How to verify a trigonometric identity by simplifying a complex fraction

How to verify a trigonometric identity by simplifying a complex fraction

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers strategies for simplifying mathematical expressions, focusing on converting terms to sines and cosines to aid visualization. It discusses handling complex fractions by adding numerators and denominators, and using common denominators to simplify expressions. The tutorial also explains factoring techniques and concludes with a demonstration of mathematical identities, emphasizing the importance of understanding these concepts.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step recommended by the instructor when you get stuck simplifying trigonometric expressions?

Multiply by the common denominator

Convert everything to sines and cosines

Add all numerators together

Convert everything to tangents and cotangents

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one method discussed for simplifying complex fractions?

Dividing by the largest term

Subtracting the denominators

Multiplying by the common numerator

Adding the numerators and denominators

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What common denominator is used to simplify the expression in the video?

Sine of X

Tangent of X

Cosine of X

Secant of X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is applied to both the numerator and denominator to simplify the expression further?

Addition

Subtraction

Factoring

Division

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What identity is demonstrated at the end of the video?

Tangent of X times Secant of X

Sine of X equals Cosine of X

Cotangent of X times Cosecant of X

Sine squared of X plus Cosine squared of X