Is this integral correct?
I'm trying to solve a differential equation but am stuck on a specific step that involves integration. Could someone please explain how the following is true?
If we integrate both sides both sides with respect to t, I would have expected the following result:
1/(1+t^2)  1/(1+1^2)*y = 3*arctan(t) + C
And factoring out the 1/(1+t^2) from the left, we would get [1/(1+t^2)](y1). Solving for y becomes
3*arctan(t)*(1+t^2) +1 + C = y
Why am I incorrect?
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