ExamPlay Dark Logo
로그인

Mathematics for IGCSE & O level - Sequences (Section 1 - No. 24)

Consider the sequence with the general formula \(U_n = n^2 + 3n - 1\). Find \(U_4\).
15
20
27
31

설명

Substitute n = 4: \(4^2 + 3*4 - 1 = 16 + 12 - 1 = 27\)

댓글 (0)

광고