$ \sin^2 rac\pi2 = 1 $, $ \cos^2(2 \cdot rac\pi2) = \cos^2 \pi = (-1)^2 = 1 $, so $ f = 1 + 1 = 2 $? No â wait: - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$$ \sin^2 rac{\pi}{2} = 1 $, $ \cos^2(2 \cdot rac{\pi}{2}) = \cos^2 \pi = (-1)^2 = 1 $, so $ f = 1 + 1 = 2 $? No â wait:$