समांतर श्रेणी 5+11 + 17+... + 179 का योगफल ज्ञात कीजिए।
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Step-by-step explanation:
179 = 5 + (n-1)6
174 = 6(n-1)
n - 1 = 29
n = 30
योगफल = 30/2 { 5 + 179}
= 15 * 184
= 2760
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