5+8+11+14+……..ধারাটির কত তম পদ 302?
Created: 2 years ago |
Updated: 1 year ago
best des
দেওয়া আছে, ১ম পদ a = 5;
সাধারণ অন্তর, d = (8 - 5) = 3
n তম পদ = 302
আমরা জানি, n তম পদ = a + (n – 1) d
⇒302 = 5 + (n − 1) 3
⇒ (n - 1) 3 = 297
⇒ n - 1 = 99
.:. n = 100
সাধারণ অন্তর, d = (8 - 5) = 3
n তম পদ = 302
আমরা জানি, n তম পদ = a + (n – 1) d
⇒302 = 5 + (n − 1) 3
⇒ (n - 1) 3 = 297
⇒ n - 1 = 99
.:. n = 100
Md Azizur Rahman
Founder of Satt
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