Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.
No jsMath TeX fonts found -- using image fonts instead.
These may be slow and might not print well.
Use the jsMath control panel to get additional information.
jsMath Control PanelHide this Message

jsMath

Solution 4.4:8b

From Förberedande kurs i matematik 1

Revision as of 08:15, 14 October 2008 by Tek (Talk | contribs)
(diff) ←Older revision | Current revision (diff) | Newer revision→ (diff)
Jump to: navigation, search

Suppose that cosx=0, so that we can divide both sides by cosx to obtain

sinxcosx=3i.e.tanx=3. 

This equation has the solutions x=3+n for all integers n.

If, on the other hand, cosx=0, then sinx=1 (draw a unit circle) and the equation cannot have such a solution.

Thus, the equation has the solutions

x=3+n(n is an arbitrary integer).
Retrieved from "http://wiki.math.se/wikis/2008/bridgecourse1-ImperialCollege/index.php/Solution_4.4:8b"