Question

Can someone check this?

Answer 1

Here is what I did: http://www.wolframalpha.com/input/?i=tell+me+the+arc+length+of+y%3D6x%2Bsin+x+from+x%3D0+to+6pi

Answer 2

But no 37...

Answer 3

@ganeshie8 @phi @zepdrix

Answer 4

multiply the stuff under the radical from the wolfram integral

Answer 5

ok. Give me a sec

Answer 6

its not b.) i think

Answer 7

dy/dx = 6 + cos x
arc lenght = integral √(1 + (dy/dx)²)
you need to simplify
1 + (6 + cos² x)²

Answer 8

Ohhh. So it must be A then.

Answer 9

yeah it looks so

Answer 10

It looks like choices A and C are the same ?

Answer 11

No, the limits are different :)

Answer 12

oh, good