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length of subtangent formula. F a. Subtangent x subnormal y 2 ordinate 2 Hence length of the subtangent ordinate and the subnormal are in GP.
Length of tangent T Length of tangent also referred to as subtangent is the distance from PC to PI. Length of Sub normal MR y tan ps y d y d x 10. 0 suggestions are available.
Point T is on x axis where tangent intersects it and point N is on x axis where normal PN meets it.
Let the tangent drawn at P meets the x-axis at T and normal drawn at P meets the x-axis at N. Length of tangent T Length of tangent also referred to as subtangent is the distance from PC to PI. But if you want a function that gives the length of subtangent at a certain point heres how you can derive it. So PA and PB are the lengths of tangent to the circle from an external point P.