Question

Check whether -112 is one of the terms of the given arithmetic progression 980,941,902 ……. If so find

which term is it and find the tenth term from it?
answer it fast​

Answer 1

Answer:

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Answer 2

a= 980 d= -39 nth term = -112

nth term = a+(n-1)d

-112 = 980+ (n-1) × (-39)

-112-980 = (n-1) × (-39)

-1092/-39 = (n-1)

28 + 1 = n

29 = n

-112 is 29th term of ths AP

tenth term = a+9d

= 980 + 9×(-39)

= 980 - 351

= 629