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$1.00 Calculus

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Due on Nov. 02, 2009
Asked on Nov 02, 2009 at 1:38:44PM

Q:

Let A be the point (0,1) and let B be the point (5,3). Find the length of the shortest path that connects points A and B if the path must touch the x -axis. In other words, the path goes from point A to somewhere on the x -axis, and then to B. (This is the "line of sight" path from A to B if the x -axis is a mirror.)

The mimimum length equals?

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jam007
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Posted on Nov 02, 2009 at 3:00:44PM

A:
Preview: ... ) 2+(1-0) 2=x 2+1 the square of the length of the line from C (x,0) to B (5,3)is =(x-5) 2+(0-3 ...

The full tutorial is about 61 words long .

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sudipta

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Posted on Nov 02, 2009 at 6:31:45PM

A:
Preview: ... 1) = (h - 5) 2/(h 2 - 10h + 34) h 2 (h 2 - 10h + 34) = (h 2 + 1) (h - 5) 2 h 4 - 10h 3 + 34h 2 = (h 2 + 1)(h 2 - 10h + 25) h 4 - 10h 3 + 34h 2 = h 4 - 10h 3 + 25h 2 + h 2 - 10h + 25 8h 2 + 10h - 25 ...

The full tutorial is about 239 words long .