A) \[x<3\]
B) \[x>3\]
C) \[7<x<8\]
D) \[5<x<6\]
Correct Answer: A
Solution :
Given,\[y=-{{x}^{2}}+6x-3\] \[\Rightarrow \] \[\frac{dy}{dx}=-2x+6=y\] \[y\]is increasing, if\[y>0\] \[\Rightarrow \] \[-2x+6>0\] \[\Rightarrow \] \[-2x>-6\] \[\Rightarrow \] \[2x<6\] \[\Rightarrow \] \[x<3\]You need to login to perform this action.
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