csat-suneung 2014 Q23

csat-suneung · South-Korea · csat__math-A 3 marks Indefinite & Definite Integrals Definite Integral Evaluation (Computational)

For a real number $a$, when $\int _ { - a } ^ { a } \left( 3 x ^ { 2 } + 2 x \right) d x = \frac { 1 } { 4 }$, find the value of $50 a$. [3 points]

For a real number $a$, when $\int _ { - a } ^ { a } \left( 3 x ^ { 2 } + 2 x \right) d x = \frac { 1 } { 4 }$, find the value of $50 a$. [3 points]