Math, asked by 12sepRAJA, 9 months ago

यदि समांतर श्रेणी का चौथा पद 11 ओर सातवां पद -4 है तो प्रथम 11 पदों का योगफल क्या होगा

Answers

Answered by kalusingh7597

1

Step-by-step explanation:

a+3d=11

a+6d=-4

d=-5

a=26

S11=11

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