Trigonometric Identities

Trigonometric Identities

Assessment

Interactive Video

Mathematics, Science

4th Grade - University

Hard

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The video tutorial demonstrates the verification of a trigonometric identity involving cosecant, cosine, tangent, and cotangent functions. The process begins by rewriting the functions in terms of sine and cosine, followed by simplifying the expression using common denominators. The Pythagorean identity is applied to further simplify the expression, ultimately verifying the identity as cosine squared of x. The tutorial provides a step-by-step approach to understanding and simplifying trigonometric expressions.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the reciprocal of the sine function?

Cosine

Tangent

Cosecant

Cotangent

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the tangent function expressed in terms of sine and cosine?

Cosine divided by sine

Sine times cosine

Sine divided by cosine

Cosine times sine

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the common denominator used in the simplification process?

Sine of x

1

Cosine of x

Sine of x, cosine of x

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which identity is used to simplify the denominator in the expression?

Sine squared plus cosine squared equals 1

Sine times cosine equals 1

Tangent squared plus 1 equals secant squared

1 plus cotangent squared equals cosecant squared

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final result of the trigonometric identity verification?

Tangent of x

Cosecant of x

Sine squared of x

Cosine squared of x