Verifying a trigonometric Identities

Verifying a trigonometric Identities

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to simplify a trigonometric identity by focusing on the more complex side of the equation. It discusses the use of various trigonometric identities, including reciprocal, quotient, and Pythagorean identities, to rewrite and simplify the equation. The process involves converting terms to sines and cosines, combining like terms, and applying the Pythagorean identity to eliminate unnecessary terms. The tutorial concludes by showing how the simplified expression matches the right side of the equation, demonstrating the use of secant as a reciprocal identity.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the left side chosen as the more complex side to work on?

It is already simplified.

It has fewer operations.

It is easier to solve.

It has more trigonometric terms.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which identities are initially considered for simplifying the expression?

Quotient and reciprocal identities

Double angle identities

Sum and difference identities

Pythagorean identities

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rewriting the expression using reciprocal and quotient identities?

To solve for tangent

To make the expression more complex

To convert everything to sines and cosines

To eliminate all cosine terms

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the Pythagorean identity used in the simplification process?

To express sine squared in terms of cosine squared

To solve for secant

To express cosine squared in terms of sine squared

To eliminate tangent terms

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final simplified form of the expression?

Secant of X

Cotangent of X

Cosecant of X

Tangent of X