0 reads0 ratings0 helpful
How many initial terms of the AP (2,7,12,\ldots) have sum (287)?समांतर श्रेढ़ी (2,7,12,\ldots) के कितने शुरुआती पदों का योग (287) होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (11)(11)
From (\frac{n}{2}[4+5(n-1)]=287), (n=11). When finding the number of terms from sum, reject the negative root.(\frac{n}{2}[4+5(n-1)]=287) से (n=11) मिलता है। योग से पदों की संख्या निकालते समय ऋणात्मक हल छोड़ दें।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
