समांतर श्रेढ़ी \(17,23,29,\ldots\) के पहले (8) पदों का योग ज्ञात कीजिए।
Find the sum of the first (8) terms of the arithmetic progression \(17,23,29,\ldots\).
Explanation opens after your attempt
B. (304)
Concept
The eighth term is (59), so (S_8=\frac{8}{2}(17+59)=304). Finding the last term first makes the sum easier.
Why this answer is correct
The correct answer is B. (304). The eighth term is (59), so (S_8=\frac{8}{2}(17+59)=304). Finding the last term first makes the sum easier.
Exam Tip
आठवाँ पद (59) है, इसलिए (S_8=\frac{8}{2}(17+59)=304)। पहले अंतिम पद निकालकर योग लेना आसान रहता है।
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