Question
Solve for x in the interval 0<x<(pi/2): 2sin(9x)+cos(10x)=cos(8x)
PLEASE HELP!!!
PLEASE HELP!!!
Answers
drwls
I recommend a graphical or iterative solution, if they allow it.
x=0 is one solution. So is pi/2, but they are asking for solutions between those values.
x = 0.349.. is one solution.
So is 0.698 and 1.047
The solutions seem to be pi/9, 2 pi/9, pi/3 and 4 pi/9
x=0 is one solution. So is pi/2, but they are asking for solutions between those values.
x = 0.349.. is one solution.
So is 0.698 and 1.047
The solutions seem to be pi/9, 2 pi/9, pi/3 and 4 pi/9