1.

Find the indicated terms in each of the following sequences whose nth terms are:(a) an = 5n − 4; a12 and a15(b) an =3n-24n + 5; a7 and a8(c) an = n (n −1) (n − 2); a5 and a8(d) an = (n − 1) (2 − n) (3 + n); a1, a2, a3(e) an = (−1)n n ; a3, a5, a8

Answer» Find the indicated terms in each of the following sequences whose nth terms are:



(a) an = 5n − 4; a12 and a15



(b) an =3n-24n + 5; a7 and a8



(c) an = n (n −1) (n − 2); a5 and a8



(d) an = (n − 1) (2 − n) (3 + n); a1, a2, a3



(e) an = (−1)n n ; a3, a5, a8


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