Godfrey, C. (Charles), 1873-1924, Siddons, A. W. (Arthur Warry) joint author · Cambridge, University Press · leaf 113
fig. 55. Ex. 40S. From what points of the line AB in fig. 54 is it impoBsihleto draw tangents to the construction circle 1 Take a point B between L and N ; according to the formula, what wouldbe the square on the radius of the circle of the system with centre B 1 Isthis positive or negative? Ex.…
Geometry, Modern
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