Analysis Trig Review

Show that AB/BP = sin BPA. Use parts A) and B) to show that c/sin BCA = diameter = a/sin CAB = b/sin ABC. (Name this formula.) 18. Use the results of two previous problems to prove that the ratio of the area of ∆ABC to the area of its circumcircle is 2(sin A(sin B(sin C/(. Q . 19. Without using a calculator, find the exact lengths of 7 4 ................
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