how many solutions are there on the interval [0,2pi]?
cos(x)sin(x)+3cos(x)+sin(x)+3=0
Im looking at this problem and Im just lost.
Printable View
how many solutions are there on the interval [0,2pi]?
cos(x)sin(x)+3cos(x)+sin(x)+3=0
Im looking at this problem and Im just lost.
Here is a hint
Note that it can be rewritten as
Now factor by grouping to get
Now use the zero factor principle to solve.