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Find the value of (S_{19}+S_{39}+S_{59}).(S_{19}+S_{39}+S_{59}) का मान ज्ञात करें।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (2740)(2740)
(S_{19}=190), (S_{39}=780), and (S_{59}=1770), so the total is (2740). Add the three different indices carefully.(S_{19}=190), (S_{39}=780) और (S_{59}=1770), इसलिए कुल (2740) है। तीन अलग सूचकांकों को ध्यान से जोड़ें।
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