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Find the value of log10 r + log10 r2 + log10 r4 + log10 r8...

Mathematics
JAMB 1994
Find the value of log10 r + log10 r2 + log10 r4 + log10 r8 + log10 r16 + log10 r32 = 63
  • A. 10-1
  • B. 10o
  • C. 10
  • D. 102
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Correct Answer: Option C
Explanation
log10 r + log10 r2 + log10 r4 + log10 r8 + log10 r16 + log10 r32 = 63

log10r63 = 63

63 = 1063

∴ r = 10
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