Write an integral giving the arc length of the graph of the equation from $\mathbf { P }$ to $\mathbf { Q }$.
$$y = \frac { 1 } { x ^ { 2 } + 2 } ; \mathrm { P } \left( 1 , \frac { 1 } { 3 } \right) , \mathrm { Q } \left( 3 , \frac { 1 } { 11 } \right)$$

Question

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The Answer is

\int _ { 1 } ^ { 3 } \sqrt { 1 + \frac { 4 x ^ { 2 } } { \left( x ^ { 2 } + 2 \right) ^ { 4 } } } d x

Write an Integral Giving the Arc Length of the Graph P\mathbf { P }P

Write an Integral Giving the Arc Length of the Graph $\mathbf { P }$