If $ \sin \theta = \frac35 $ and $ \theta $ is in the second quadrant, what is $ \cos(2\theta) $? - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$If $ \sin \theta = \frac{3}{5} $ and $ \theta $ is in the second quadrant, what is $ \cos(2\theta) $?$