Math, asked by yashsharmackt, 11 months ago

please solve it guys​

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Answered by camjayasudha
0

a=7

d=19-7=12

Tn= a+(n-1)d

3775 = 7+(n-1)12

3775 =7+12n-12

3775 = 12n - 5

3775 +5 = 12n

3780 = 12n

3780/12 = n

n = 315

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