Estimate $\int _ { 1 } ^ { 3 } \frac { 1 } { x ^ { 2 } } d x$ using the Trapezoidal Rule with n = 4. Then use the error bound $\left| E _ { T } \right| \leq \frac { k ( b - a ) ^ { 3 } } { 12 n ^ { 2 } }$ to estimate the accuracy.

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The Answer of Estimate $\int _ { 1 } ^ { 3 } \frac { 1 } { x ^ { 2 } } d x$ using the Trapezoidal Rule with n = 4. Then use the error bound $\left| E _ { T } \right| \leq \frac { k ( b - a ) ^ { 3 } } { 12 n ^ { 2 } }$ to estimate the accuracy.

Estimate ∫131x2dx\int _ { 1 } ^ { 3 } \frac { 1 } { x ^ { 2 } } d x∫13​x21​dx

Estimate $\int _ { 1 } ^ { 3 } \frac { 1 } { x ^ { 2 } } d x$