Question

y = x(5-x), maxima or minima for which value of x.
1) 5/2
2)1/2
3)3/2
4) None of these.
.
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plz answer

Answer 1

We can find the value of x, when
dy/dx=0, because of maxima or minima.
Here, y=x(5-x)
so, dy/dx=5-2x
Hence, 5-2x=0
or, x =5/2

The correct answer is- 1) 5/2
Are you satisfied.