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mote1985 [20]
2 years ago
6

Find the 81st term of the arithmetic sequence -28, -34, -40, ...

Mathematics
1 answer:
yan [13]2 years ago
6 0

Answer:

for the 81st term of this arithmetic sequence is going to be -508

Step-by-step explanation:

From the first three term(a1, a2, a3) we can see the common difference is going to be -6, and we know the first term of the arithmetic sequence is -28,

and the general expression of a arithmetic sequence is going to be an=a1+d(n-1)

in this case is going to be an=-6n-22, replacing 81 we got a a81 is going to be -508

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