InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    The equation `5^(1+log_(5)cosx)=5/2`hasA. no solutionB. one solutionC. two solutionsD. more than two solutions | 
                            
| 
                                   
Answer» Correct Answer - D We have, `5^(1+log_(5)cosx)=(5)/(2)` ` implies1+log_(5)5+log_(5) coss=log_(5)5-log_(5)2` `implies log_(5)cos x=-log_(5)2` `implies log_(5) cos x=log_(5)2^(-1)` `implies cosx=2^(-1) implies cos x=(1)/(2) impliesx=2n pi+-(pi)/(3),n in Z`  | 
                            |