CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

If 3(cos2x)=(31)cosx+1, the number of solutions of the given equation when x[0,π2] is 


Solution

3(cos2x)=(31)cosx+1
Put cosx=t
3t2(31)t1=0
t=(31)±4+2323
t=1 or 13
cosx=1 or 13 rejected as x[0,π2]
cosx=1
Number of solution =1

Mathematics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image