JAMB - Mathematics (1994 - No. 18)

Find the value of log10 r + log10 r2 + log10 r4 + log10 r8 + log10 r16 + log10 r32 = 63
10-1
10o
10
102

Explanation

log10 r + log10 r2 + log10 r4 + log10 r8 + log10 r16 + log10 r32 = 63

log10r63 = 63

63 = 1063

∴ r = 10

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