CAPE Pure Mathematics Unit 1 · May/June 2012 · Paper 1 · Question Q9
If \log_a 4 + \log_a x - \log_a 7 = 2, then the value of x is
- (A)
\frac{7}{2^a} - (B)
\frac{7}{4}a^2 - (C)
\frac{4}{7}a^2 - (D)
\frac{7}{4}2^a
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