∴cos(α？ π6)= cosαcosπ6+sinαsinπ6 = 35×32+45× 12 = 33+4 10。
(2) From the known OP = (32, 12), OQ = (cos α, sinα),
∴f(α)=OP？ I praised it and stepped on it. What is your evaluation of 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 has not been solved, please describe your problem in detail and consult other similar problems free of charge through Baidu Law Pro 20 12-05-29. As shown in Figure 2, let A be the intersection of the unit circle and the positive semi-axis of X axis, P and Q be the two points on the unit circle, and O be the origin of coordinates. And the angle AOP is 6432011-05-21. If the point P is on the coordinate axis, and the circle with radius of 12/5 is tangent to the straight line y=-4/3x+4, find the coordinate of the point P152013-10/6 as shown in the figure. In the plane rectangular coordinate system, 32011-1-27 As shown in the figure, in the plane rectangular coordinate system, point P is the negative semi-axis of Y axis, with point P as the center and point OP as the radius, draw a straight line parallel to Y axis and two points M and N. If 420/kloc-0, P is the moving point on ⊙O, and P is in the first quadrant. Passing point p22016-12-01In rectangular coordinate system, a circle with P(2 1) as the center and r as the radius has exactly three common points with the coordinate axis. 320 14-05-25 In the plane rectangular coordinate system, the radius of the circle O is 25, the point P is on the circle O, and the abscissa and ordinate are integers. There are several 2' s to recommend to you: Why is the cost of cancer treatment especially recommended to be 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? Baidu legal pro-free legal service recommends super 3w professional lawyers, 24-hour online service, with an average of 3 minutes to reply to free appointments. Online lawyers guide professional lawyers to complete one-on-one communication at any time, waiting for your answer? Change and help more people? Download Baidu Know APP and grab a fresh experience. Know the APP with Baidu and grab a fresh experience immediately. There may be answers that others want to know in the camera of your mobile phone. Scan QR code to download illegal and harmful information about personal and corporate infringement complaints. Please select and submit a category below.
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