Find the Integral e^(x^3)

Problem

(∫_^)(e^(x^3)*d(x))

Solution

1. Identify the type of integral. The function e^(x^3) is a composition of the exponential function and a cubic power function.

2. Analyze the integrability. The integral (∫_^)(e^(x^3)*d(x)) does not have an antiderivative that can be expressed in terms of elementary functions (such as polynomials, logarithms, or trigonometric functions).

3. Represent the solution using a power series. To find a representation, use the Taylor series for e^u which is (∑_n=0^∞)((u^n)/(n!))

4. Substitute u=x^3 into the series.

(∫_^)((∑_n=0^∞)(((x^3)^n)/(n!))*d(x))

5. Simplify the exponent.

(∫_^)((∑_n=0^∞)((x^(3*n))/(n!))*d(x))

6. Integrate the series term by term.

(∑_n=0^∞)((x^(3*n+1))/(n!(3*n+1)))+C

Final Answer

(∫_^)(e^(x^3)*d(x))=(∑_n=0^∞)((x^(3*n+1))/(n!(3*n+1)))+C

Want more problems? Check here!