Math, asked by 777777722, 8 months ago

which term of AP 21, 18, 15 ________ is zero? ​

Answers

Answered by sanyaranababa16
1

Answer:

AP

Step-by-step explanation:

which term of ap 21,18,15 - is zero

ans is Ap

Answered by bharatbijou
1

Answer:

as a= 21 and common difference d=-3 put the last term l=an=0

therefore = an = a+ (n-1)d

                = 0=21 + (n-1)(-3)

                =0=21-3n+3

                 24=3n

       therefore n=8

thus the 8th term is = 0 of this A.P

Step-by-step explanation:

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