Question

Identify the function f and the largest interval of form [0, a] on which the limit below represents a definite integral.
http://i48.tinypic.com/9aslfo.jpg

Answer 1

please tell me you tried \(f(x)=\sqrt{49-x^2}\)

Answer 2

Of course i did

Answer 3

didn't work?

Answer 4

oh damn, there is a 2 out there, isn't there

Answer 5

yeah and I tried it with the 2 as well

Answer 6

f(x)=sq(x(a-x))

Answer 7

i think it is \(f(x)=2\sqrt{49-x^2}\)

Answer 8

I tried that

Answer 9

integral is
\[\sum_{i=1}^nf(x_i^*)\Delta x\]

Answer 10

then i am lost

Answer 11

oh maybe you were supposed to put in the interval as well

Answer 12

Maybe if I change the order to match that so that the 2 is the last part...I orignally wrote it 2*sqrt49-x^2

Answer 13

wow...yeah of course it accepted that and not the 2* one...thanks quys. I hate online hw

Answer 14

jesus

Answer 15

dx=a-0/n
and max of a is 7
so dx=7/n
so if deltax is i/n you can find the coefficient.

Answer 16

picky picky picky

Answer 17

indeed. XP