Is this pythagorean trig identity correct? $$\text{sin}^2{(\frac{3\pi}{4})} = \text{tan}^2{(\frac{3\pi}{4})} - \text{cos}^2{(\frac{3\pi}{4})}$$

Trigonometry Identities - Tan^2 and Sec^2 Identity True/False (Radians)

Level 1

The topics in this unit focus on mastering the basic trigonometric identities. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Trigonometry Identities - Tan^2 and Sec^2 Identity True/False (Radians)

Is this pythagorean trig identity correct?

\text{cos}^2{(\frac{7\pi}{4})} = \text{sin}^2{(\frac{7\pi}{4})} \cdot \text{tan}^2{(\frac{7\pi}{4})}

Earned ?