Solve for x: sin x = cos (2x + 15)
Follow Math Help Forum on Facebook and Google+
Continue?. How many solutions are you looking for?. In a certain interval?. Just one?.
Originally Posted by galactus Continue?. How many solutions are you looking for?. In a certain interval?. Just one?. I'll just add a bit of background: and so the equation can be written as . Now you need to understand the symmetry of the unit circle: means that either or where n is an integer.
I want to thank both replies. I am learning a lot here.
View Tag Cloud