Simple complex number question

**HallsofIvy** · January 20th 2010, 07:17 AM

Originally Posted by .::MadMaX::.

Yes, both sine and cosine are periodic with period [ math]2\pi[/tex] so
1) $cos(14\pi)= cos(7(2\pi))= cos(2\pi)= cos(0)= 1$ and
2 $sin(14\pi)= sin(7(2\pi))= sin(\pi)= sin(0)= 0$ .

**.::MadMaX::.** · January 20th 2010, 07:23 AM

I wasn't so sure about that,because in the book says they are both 0,so I posted question here just to be sure

Thanks HallsofIvy!

Thread: Simple complex number question

LinkBack

Thread Tools

Display

Simple complex number question

Similar Math Help Forum Discussions

Simple Complex number

A Simple Complex Number Equation

simple complex number

complex number simple (wrong thread)

[SOLVED] Simple Clarification of Complex number

Search Tags