Question
Download Solution PDF4, 12, 36, 108 ही मालिकेतील पहिली चार पदे आहेत, तर मालिकेतील 6 वे पद कोणते असेल?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे:
4, 12, 36, 108 ही मालिका आहे
वापरलेली संकल्पना:
भूमितीय श्रेढीमध्ये,
an = a1{r(n - 1)}
येथे,
an = n वे पद
a1 = पहिले पद
r = सामान्य गुणोत्तर
n = पदांची संख्या
गणना:
प्रश्नानुसार:
a1 = 4
a2 = 12
म्हणून, a1 : a2 चे सामान्य गुणोत्तर = 4 : 12
⇒ 1 : 3
म्हणून,
a6 = 4 × 3(6 - 1)
⇒ a6 = 4 × 35
⇒ a6 = 4 × 243
⇒ a6 = 972
म्हणून, मालिकेतील 6 वे पद = 972
∴ या मालिकेतील 6 वे पद 972 आहे.
Last updated on Jun 11, 2025
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