Evaluate the Integral Using the Given Substitution $$\int x \cos \left( 2 x ^ { 2 } \right) d x , \quad u = 2 x ^ { 2 }$$

question 159

Multiple Choice

Evaluate the integral using the given substitution.
- $$\int x \cos \left( 2 x ^ { 2 } \right) d x , \quad u = 2 x ^ { 2 }$$

• A) \(\sin \left( 2 x ^ { 2 } \right) + C\)
• B) \(\frac { 1 } { u } \sin ( \mathrm { u } ) + \mathrm { C }\)
• C) \(\frac { x ^ { 2 } } { 2 } \sin \left( 2 x ^ { 2 } \right) + C\)
• D) \(\frac { 1 } { 4 } \sin \left( 2 x ^ { 2 } \right) + C\)

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