Question

15,9,3,....What number term is -111.​

Answer 1

here is the solution of ur ques

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Answer 2

Answer:

Step-by-step explanation:

an=a+(n-1)d

-111=15+(n-1)-6

-111=15-6n+6

-111=21-6n

-111-21=-6n

-132=-6n

n=6/132=22

Therefore 22nd term is -111