Schmall, Charles Nelson. [from old catalog] · New York, D. Van Nostrand company · leaf 123
Fig. 89. 10. If a circle is inscribed in a quadrilateral,show that the diagonals and the lines joiningthe opposite points of contact are all concur-rent. 11. Find the polar of (— 9, — 7) with respectto x^ + y- = 14. 12. Find the polar of (■to x + y ^ 3. 2) with respect … Fig. 90. 13. Find the pole of 2x+ 6y -\-U = 0 withrespect to the circle x^ + y = 5. 14. Pole oix-y — 2 = 0 with respect to x^ + y^ = B. 15. Pole of ax + by — 1 = 0 with respect to x^ + y^ = 49. Ans. (49 a, 49Z>). 16. Find the points of contact of the tangents from (4, 7) to the circle ic2 + 2/2…
Geometry, Analytic
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