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If both the roots of the quadratic equation  are less than 5, then  lies in the interval

a)

[4, 5]

b)

c)

d)

(5, 6]



Question ID - 103299 | SaraNextGen Top Answer

If both the roots of the quadratic equation  are less than 5, then  lies in the interval

a)

[4, 5]

b)

c)

d)

(5, 6]

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Let  

Since, both roots are less than 5

Then,    and   

Now,  

   ...(i)

      ...(ii)

And  

 and           ...(iii)

From Eqs. (i), (ii) and (iii), we get

127 votes


127