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a▓b▓ a▓y angle asymptote axes b╣▓ b▓x▓ becomes called chord circle coincides conjugate diameters constant coordinates Corollary Corollary 1.-The corresponding cos▓ cuts diagonal directral directrix distance Draw eccentricity ellipse equal EXAMPLES extremities Find fixed point focal radii focus fraction Geom given hand Hence substituting hyperbola inclination intersection joining length Let LM Let PT Let x locus move normal ordinates origin parabola parallel parameter perpendicular plane point of tangency polar pole PROPOSITION prove radius represented revolve satisfy the equation secant sides Similarly sin▓ slope squares stand straight line straight line passing Substituting these values Substituting this value system of chords taken tangents drawn transverse axis Trig vertex x and y x╣▓ y╣▓
Page 363 - ... an arc whose length is equal to the radius of the circle. Thus in Fig.
Page 360 - Pythagorean theorem, which states that the sum of the squares of the sides of a right triangle is equal to the square of the hypotenuse.
Page 360 - A straight line is perpendicular to a plane, if it is perpendicular to every straight line drawn through its foot in the plane ; and the plane is perpendicular to the line.
Page 359 - Two right triangles are equal if the hypotenuse and an acute angle of the one are equal respectively to the hypotenuse and an acute angle of the other.
Page 359 - An exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Page 57 - ... lines, and the perpendiculars from the three vertices of the triangle upon this line will be equal, by Chap. I, II, 13. A perpendicular to AB erected midway between any two of these three is perpendicular to the corresponding side of the triangle at its middle point (Chap.
Page 361 - COR. 1. If two planes are perpendicular to each other, a perpendicular to one of them at any point of their intersection will lie in the other plane.
Page 360 - If a line divides two sides of a triangle proportionally, it is parallel to the third side.