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3 votes
2,-1,-4,-7 78TH term

User Tim Murphy
by
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1 Answer

3 votes

Answer:

a= 2 , d= a²-a¹--> -1-2= -3

78th term

a⁷⁸= a+77d

=> 2 + 77(-3)

=> 2 + (-231)

=> -229

User Iisystems
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8.2k points