1.

Find the 66th term of the arithmetic sequence -28, -45, -62, ...

Answer»

Answer:

a = -28

d = -45 -(-28) = -17

n = 66

an = ?

an = a + (n-1) d

an = -28 + 65× -17

a66 = -28 -1105

a66 = -1133



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