Trigonometry Identities - Co-Function Identity True/False (Degrees)

Level 1

This math topic focuses on evaluating the correctness of trigonometric co-function identities that involve degrees. Each question provides a true/false problem where students are asked to determine if a given trigonometric identity (involving tangent, cotangent, cosecant, secant, sine, and cosine) is correctly stated. The identities presented explore relationships with different angles, requiring students to apply knowledge of trigonometric functions and angle transformations to assess the validity of the identities.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Trigonometry Identities - Co-Function Identity True/False (Degrees) Worksheet

Trigonometry Identities - Co-Function Identity True/False (Degrees)

Is this cofunction identity correct?

$A LaTex expression showing \text{tan}{(30 to the power of circle )} = \text{cot}{(90 to the power of circle + 30 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{csc}{(120 to the power of circle )} = \text{sin}{(90 to the power of circle - 120 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{sec}{(120 to the power of circle )} = \text{csc}{(90 to the power of circle - 120 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{tan}{(300 to the power of circle )} = \text{cot}{(90 to the power of circle - 300 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{csc}{(240 to the power of circle )} = \text{sec}{(90 to the power of circle - 240 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{tan}{(150 to the power of circle )} = \text{cot}{(90 to the power of circle + 150 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{sin}{(135 to the power of circle )} = \text{cos}{(90 to the power of circle - 135 to the power of circle )}$

Yes

Is this cofunction identity correct?

$A LaTex expression showing \text{tan}{(60 to the power of circle )} = \text{cot}{(90 to the power of circle + 60 to the power of circle )}$

Yes