Math, asked by jishabhRishabh6147, 8 months ago

Tn=28,Sn=144,n=9 a=? How to solve

Answers

Answered by yukti827

3

Answer:

= 28 , = 144 , = 9 , =?

= /2[+]

144 = 9/2[+28]

32 = +28

= 32-28

= 4

.

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