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What will be the sum of the first (25) even natural numbers?पहले (25) सम प्राकृतिक संख्याओं का योग कितना होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (650)(650)
The sum of the first (n) even numbers is (n(n+1)), so (25\times26=650). For even numbers, start from (2,4,6,\ldots).पहले (n) सम संख्याओं का योग (n(n+1)) होता है, इसलिए (25\times26=650)। सम संख्याओं में (2,4,6,\ldots) से शुरू करें।
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