Question
Download Solution PDF2 + 22 + 23 + 24 + ..... + 28
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చినవి:
2 + 22 + 23 + 24 + ..... + 28 = ?
ఉపయోగించిన సూత్రం:
గుణ శ్రేఢి మొత్తం: {a x (r8 - 1)}/(r - 1)
ఇక్కడ,
a = మొదటి పదం, r = సామాన్య నిష్పత్తి, n = పదాల సంఖ్య
గణన:
ఇక్కడ, a = 2, r = 2, మరియు n = 8
S = 2 x {(28 - 1)}/(2 - 1)}
⇒ S = 2 x (256 - 1) / (2 - 1)
⇒ S = 2 x (255) / (1)
⇒ S = 2 x 255
⇒ S = 510
∴ సరైన సమాధానం ఎంపిక (1).
Last updated on May 9, 2023
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