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René Descartes and Analytic Geometry What is ... - Technion moodle

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18<br />

(2) <strong>Descartes</strong>’ solution.<br />

a1<br />

a3<br />

F<br />

E<br />

D<br />

a2<br />

k<br />

T<br />

S<br />

A<br />

R<br />

x<br />

α3 α4<br />

d3<br />

y<br />

α2<br />

d2<br />

B<br />

C<br />

ℓ = AG<br />

Set x = AB <strong>and</strong> y = CB. Angles in the<br />

configuration are largely known.<br />

α1<br />

G<br />

d4<br />

a4

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