Buktikan cosx/sin^2x-1=-secx

By Admin ReiPosted on December 8, 2022

Buktikan cosx/sin^2x-1=-secx

Penjelasan dengan langkah-langkah:

$frac{cosx}{ {sin}^{2}x - 1} \ = frac{cosx}{(1 - {cos}^{2}x) - 1} \ = frac{cosx}{ - {cos}^{2}x } \ = - frac{1}{cosx} \ = - secx$