Math, asked by asin80, 6 months ago

In an A.P. first two terms are -3, 4 then 21st term is ...
(A) -143 (B) 143
(C) 137
(D) 17

Answers

Answered by kashishj2005

15

Step-by-step explanation:

hope u helps u .

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Answered by aditigupta15

9

Answer:

a=-3 , d=4-(-3) =7

21st term=a+(21-1) d

=-3+20(7)

=-3+140

=137

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