Accelerated Maths 1 was basically Linear Algebra with about two weeks of Calc 2 and Real Analysis thrown in. My friends and I believe the Linear Algebra content taught in Accelerated Maths is a bit more rigorous than in the subject Linear Algebra, as the subject is essentially broken down into Linear Algebra in Accelerated Maths 1, and Calc 2 and Real Analysis in Accelerated Maths 2.

That being said content-wise you should consider them equivalent - the purpose of having Accelerated Maths was so that students who had to do all three subjects could do it in two subjects, and have that third subject freed up for something else