Pythagorean identity practice
In a right-triangle setting, \(\sin\theta=\frac{5}{13}\). Use \(\sin^2\theta+\cos^2\theta=1\) to find \(\sin^2\theta\), \(\cos^2\theta\), and positive \(\cos\theta\).
AI writing feedback
How would you answer this question in your own words? The AI will analyse your response and give feedback on reasoning, evidence, and expression.