Question

Which of these integrals can be used to find the length of the curve y=x^(5/2), where 1<=x<=3?

Answer 1

first one!

Answer 2

third as well!

Answer 3

not first one

Answer 4

There should only be one answer.. Lol.

Answer 5

\[\int_a^b \sqrt{1+f'(x)^2}dx\]

Answer 6

\[f'(x)=\frac{5}{2}x^{\frac{3}{2}}\]
\[f'^2=\frac{25}{4}x^3\]

Answer 7

i hope that is one of the answer else i made a mistake

Answer 8

3 out of 4 is it

Answer 9

yeah you're right. It said it was the right answer :D