In Rt△AOC, AC=2, OA=3,
According to Pythagorean Theorem: OC=AC2? AO2= 1，
Then in Rt△AOC, sin ∠ Cao = OCAC =12;
(2) connect 0B, so that the DE⊥x axis passes through D at point E,
∵OD cuts ⊙B to 0, ∴0B⊥OD,
∫ in Rt△AOC, sin∠CAO= 12,
BA = OB，
∴∠CAO=∠BOA=30，
∴∠ DBO =∠ Cao+∠ BOA = 2 ∠ BOA = 60, and ∠ BOD = 90,
∴∠ ODB = 30, that is ∠ODA=∠OAD,
∴OD=OA=3，
∫∠DOE = 60，DO=3，
∴OE= 120D=: I praised it and stepped on it. What's your comment on this answer? Put away comments//high quality or satisfaction or special types or recommended answers dottimewindow.iperformance & window.iperformance.mark ('c _ best',+newdate); Lawyer recommendation service: If your problem is not solved, please describe your problem in detail and provide free professional consultation through Baidu Legal Pro. Other similar problems 2023-04-2225. (14 point) In the plane rectangular coordinate system, the following definition is given: the smaller value of the distance from point A to X axis and Y axis is called 20 1 1-09-. (1) If ⊙A is tangent to the Y axis, you need to flatten ⊙A to the right 212012-04-19. In the plane rectangular coordinate system, the circle C with radius r intersects the X axis at point D (1, 0). 520 10- 10-06 In the plane rectangular coordinate system, circle C with radius R intersects with points D (1 0) and E (5,0) on the X axis, and is tangent to the positive semi-axis of the Y axis at point B as shown in figure 452012-. The coordinates of point A are known that A and B are two points on the inverse proportional function y = kx (k > 0, x > 0), BC∑x axis, Y axis intersects with C, and the moving point P is from the original coordinates of 92014-1-05 (2065438). As shown in the figure, in the plane rectangular coordinate system xOy, take point A (2 2,3) as the vertex to make a right angle ∠PAQ, so that its two sides are respectively connected with192016-12-01(2013. Nanchang) as shown in the figure, in the plane rectangular coordinate system, a circle with a radius of 2 and a circle with a radius of 2 intersect with the Y axis at point A and point P (4 4,2) ⊙O-7. [{ ' URL ':'/d 0 1373 f 082025 AAF 5 1 1aa 256 e 9 edab 64034 f 1a 07？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '， ' contractId':'A24KA00562 '，}，{ ' URL ':/builder/bjh-activity/articlesTask？ taskId = 1598082 & aside = 0 & footer = true & from = 0 '，' src ':'/203 FB 80 e 7 bec 54 e 773 ea 0680 ab 389 b 504 fc 26 a2d？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId ':' '，}，{ ' URL ':/s？ word = % E6 % AC % A7 % E6 % B4 % B2 % E6 % 9D % AF & sa = searchpromo _ ozb _ zhidao _ tuijian '，' src ':'/3 BF 33 a 87 e 950352 AAF 5 df 4954 143 fbf2b 2 1 18 b6b？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId ':' '，}])； Why is the cost of cancer treatment getting higher and higher? The price of electric cars has dropped many times. Is the quality guaranteed? What impact will the "network toilet" have? Is Huaqiang North's second-hand mobile phone reliable? I recommend f.context ('recbrand', [{"img": "\/86D6277F9E2F07083523F69DFB 24B 899A901F20d? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto "，" url":"/hm.js？ 6859 ce 5a af 00 FB 00387 e 6434 E4 FCC 925 "； var s = document . getelementsbytagname(" script ")[0]； s.parentNode.insertBefore(hm，s)； })(); window . TT = 172 1033947；