<p>It seems to me that if a student “forgot” the math that is covered on the SAT I, having gone beyond it, the student didn’t learn it very well to begin with. There are no abstruse questions involving trig identities about sec^2 x. One might have to refresh one’s recollection on right triangles with sides (1, 1, 2^(1/2)) or (1, 3^(1/2), 2), conceivably, but I can’t think of any other questions that require review, for a more advanced math student, who got the material the first time around.</p>