## Trigonometry (11th Edition) Clone

$\Delta S = 0$ when $N = 82.5$
$\Delta S = 0.034~S~sin~[\frac{2\pi~(82.5-N)}{365.25}]$ $\Delta S = 0$ when $sin~[\frac{2\pi~(82.5-N)}{365.25}] = 0$ Then $\frac{2\pi~(82.5-N)}{365.25} = 0$ Then $N = 82.5$ $\Delta S = 0$ when $N = 82.5$