Find the x coordinate of the point at which the tangent line to a circle centered at the origin intersects the x axis.
Consider the circle of radius 4 that's centered at the origin. Let P be a point which is on that circle but not on the y axis, and let Q be the point at which the line tangent to the circle at point P intersects the x axis. Express the x coordinate of Q in terms of the x coordinate of P.
Also, let theta be the angle (measured counterclockwise) whose initial side is the positive x axis and whose terminal side is the ray from the origin that passes through point P. Express the x coordinate of Q in terms of theta.© BrainMass Inc. brainmass.com March 5, 2021, 1:53 am ad1c9bdddf
All of the pertinent information is reviewed, and the problem is solved step by step and in detail, to find the x coordinate of the point.