Evaluate the Integral If It Exists $$\int _ { 0 } ^ { 1 } 3 x ^ { 2 } \cos \left( x ^ { 2 } \right) d x$$

Short Answer

Evaluate the integral if it exists.
$$\int _ { 0 } ^ { 1 } 3 x ^ { 2 } \cos \left( x ^ { 2 } \right) d x$$