Math, asked by sushmitakumari1187, 1 year ago

Find the sum of 3+7+11+.........to 25 terms

Answers

Answered by jerri
0
hello Frnd

here is your answer

Take a look at this pic



hope it helps
#jerri
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Answered by khpawargmailcom
0
a=3
d=4
Sn =n/2[2a + (n-1)d]
S25= 25/2[6+24×4]
=1275
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