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Gresty Academy Paper 2 · Q20

Paper 2Powers & logarithms

The length of the curve described by

2log⁡10(x+y)=log⁡10(1+2xy)2\log_{10}(x+y)=\log_{10}(1+2xy)

is

A00
Bπ2\frac\pi2
Cπ\pi
D3π2\frac{3\pi}{2}
E2π2\pi

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