7.7.15-eg-1 - Example Given that α = cos−1 Given that α...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Example Given that α = cos−1 Given that α = cos−1 use the fact that 4 5 4 5 , find csc α. , we sketch a right triangle, label one of its acute angles α, and cos α = adjacent 4 = 5 hypoteneus to label the side of the triangle adjacent to α as 4 and the hypoteneus 5. Using the Pythagorean theorem, we find that the leg opposite to α is Therefore, 1 hypoteneus 5 csc α = = =. sin α opposite 3 √ 52 − 42 = 3. ...
View Full Document

This note was uploaded on 04/02/2012 for the course MTH 132 taught by Professor Kihyunhyun during the Fall '10 term at Michigan State University.

Ask a homework question - tutors are online