1. The line OA, where A is the point (2, 1), is rotated about the origin through 180°.(a) What are the new coordinates of A? (-2,-1)(b) The new position of A is now reflected in the x-axis.What are the coordinates of A now? (-2,1) 相关知识点: 试题来源: 解析...
If a and b are intercepts made on the new axes by a straight line whose equation referred to old the axes is x+y=1, then the value of 1a2+1b2 is equal to View Solution Q3 The coordinate axes are rotated about the origin (0,0) in counter clockwise direction through ...
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Point A(-5,-40) is rotated {eq}90^o {/eq} counterclockwise about the point (-2,-3). What is the coordinate of 'A' after the rotation? Rotation of points: When the coordinate of a point (x, y) is rotated about the origin by angle...
百度试题 结果1 题目b. Find the co-ordinates of the image of a point (-4, 3) when it is first rotated about the origin O through 180° and then translated by. (6,-6) 相关知识点: 试题来源: 解析 (6,-6) 反馈 收藏
百度试题 结果1 题目 7. The point, P, with coordinates (2, 3) is rotated 90°anticlockwise about the origin.What are the new coordinates of the point? (3, -2) 相关知识点: 试题来源: 解析 (3,-2) 反馈 收藏
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the region whose boundaries are given is rotated about the line indicated. Choose the alternative that gives the volume of the solid generated.The base of a solid is a circle of radius a and is centered at the origin. Each cross section perpendicular to the x-axis is a square. The ...