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(1)/(1+x+x^(2)+x^(3))...

`(1)/(1+x+x^(2)+x^(3))`

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To solve the integral \( \int \frac{1}{1 + x + x^2 + x^3} \, dx \), we will follow these steps: ### Step 1: Factor the Denominator First, we need to factor the polynomial in the denominator \( 1 + x + x^2 + x^3 \). We can rewrite it as: \[ 1 + x + x^2 + x^3 = (1 + x)(1 + x^2) ...
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