wahi aasaan hain , subah tak kuch aur dekhta hun. might be rohan abhi bol dega.
If f(x) is a quadratic expression in x and [6\int_{0}^{1}{f(x)dx}]-[f(0)+4f(\frac{1}{2})]=kf(1)
then k=????????
I did it by assuming f(x)=ax2+bx+c..and got answer in 3 steps.....
Is there any other quicker or elegant method to solve it???????
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6 Answers
Dr.House
·2009-03-07 09:53:34
Lokesh Verma
·2009-03-07 22:19:41
If it was an objective question I wud have put k=1
dont ask why. Just a hunch! :)
because 6=1+4+k
Where did i get this hunch from.. it is kind of the weighted average if you look closely :)