Math, asked by ichuparambil, 8 months ago

find the sum of 7+11+15+......83​

Answers

Answered by aryan073
2

Step-by-step explanation:

sn=a/2+(2n-1)d

sn=7/2+(2(83-1)4

sn=7/2+2(82)4

solve this u get urs answer perfectly

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