kaliahisrael
kaliahisrael kaliahisrael
  • 04-04-2022
  • Mathematics
contestada



just look at the picture.....​

just look at the picture class=

Respuesta :

alemwgebreal
alemwgebreal alemwgebreal
  • 04-04-2022

Answer:

is equal to 925 i think cuz

Step-by-step explanation:

summation of arithmetic sequence

n=1 , 3n-2=3-2=1 , a=1, d=3.

sn=n+3n(n-1)

-------------

2

a=1 ,d=3 sn= n+3n(n-1)

------------

2

S25=25+3×25(25-1)

--------------

2

25+900=925

so the answer will be 925

Answer Link
elishamoss742 elishamoss742
  • 04-04-2022
The answer is S25=925
Answer Link

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