question_answer

For what value of m, the equation \[-\,2{{m}^{2}}+5m-12\] has maximum value?

A) \[\frac{5}{2}\]                                                              

B) \[\frac{-5}{2}\]         

C) \[\frac{5}{4}\]              

D) \[\frac{-5}{4}\]

E) None of these