Math, asked by nitinking62, 11 months ago

Q9. Which term is the first negative of A.P.21, 17, 13,..........?
.

Answers

Answered by tushar74845

0

Answer:

a=21, C. D =-4

Step-by-step explanation:

NOW,by formula

an =a+ (n-1) d

answer is -3

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