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Find the sum of the first (15) odd natural numbers.पहले (15) विषम प्राकृतिक संख्याओं का योग ज्ञात कीजिए।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (225)(225)
The sum of the first (n) odd numbers is (n^2), so (15^2=225). This short formula saves time in exams.पहले (n) विषम संख्याओं का योग (n^2) होता है, इसलिए (15^2=225)। यह छोटा सूत्र परीक्षा में समय बचाता है।
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