1.

If a=8 n=50 S50=25 find the value of d​

Answer»

Answer:

15/49 or 0.361

Step-by-step EXPLANATION:

sn = n \div 2(2a  + (n - <klux>1</klux>)d)

S 50 = 25 ( 16+49d)

25 = 25 ( 16-49d)

1= 16-49d

-15= -49d

15= 49d

15/49= d

d= 15/49 or 0.361



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