video1.0<iframe src="https://www.loom.com/embed/c715c08391e14c9998c2f33a3427f3bb" frameborder="0" width="960" height="720" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>720960Loomhttps://www.loom.com720960https://cdn.loom.com/sessions/thumbnails/c715c08391e14c9998c2f33a3427f3bb-00001.jpg121p: In a right triangle, one angle measures x°, where sin x° = 4/5. What is cos(90° -x°) a: ; ; ; ;