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Recent questions tagged telegram-57610

(chatquestion)...39 x2-2x+ y = 0, P(-3,-15) 40 The two towers of a suspension bridge are 300 meters apart and extend 80 meters above the road surface. If the cable (in the shape of a parabola) is tangent to the road at the center of the bridge, find the height of the cable above the road at 50 meters and also at 100 meters from the center of the bridge. (Assume that the road is horizontal.) See Fig. 15. the 80 meters s in FIGURE 15 41 At a point P on a parabola a tangent line is drawn. This line intersects the axis of the parabola at a point A. If F denotes the focus, show that AAPF is isosceles. 42 Let P(x1, yı) be a point (not the vertex) on the parabola y? = 2px. Find the equation of the line normal to the parabola at this point. Show that this normal line intersects the x axis at the point Q(x, + p, 0). AND THE ELLIPSE* points (x, y) which are at a given distance r from a fixed point sa circle. We also use the statement, the graph of m the formula for the distance between two points we know such points r=/(x- h)² +(y– k)², cerial on the circle and the ellipse as well as another problem set, may pendix 2, Sections 1 and 3, at the end of the book. ETRY IN THE PLANE ring...(No. 41)

asked Feb 19, 2020 by balaji.thirumalai

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