# Polar-equation Sentence Examples

Its cartesian equation, when the line joining the two fixed points is the axis of x and the middle point of this line is the origin, is (x 2 + y 2)2 = 2a 2 (x 2 - y 2) and the

**polar equation**is r 2 = 2a 2 cos 20.The

**polar equation**is r= I -f - 2 cos 0 and the form of the curve is shown in the figure.The

**polar equation**of the cross-section being rI cos 19 =al, or r + x = 2a, (3) the conditions are satisfied by = Ur sin g -2Uairi sin IB = 2Uri sin 10(14 cos 18a'), (4) 1J/ =2Uairi sin IO = -U1/ [2a(r-x)], (5) w =-2Uaiz1, (6) and the resistance of the liquid is 2lrpaV2/2g.The

**polar equation**is r=a+b cos 0, where 2a= length of the rod, and b= diameter of the circle.This is recognized as the

**polar equation**of a conic referred to the focus, the half latus-rectum being hf/u.If P=pr, its

**polar equation**is rcosme=a, (27)Taking the case where the motion is strictly in two dimensions, we may write as the

**polar equation**of the surface at time t r =a cos nB cos pt, (4) where p is given by p2 = (n3_ n)..The cartesian equation, when A is the origin and AB = 2a, is y 2 (2a - x) =x 8; the

**polar equation**is r= 2a sin 0 tan 0.The cartesian equation to a parabola which touches the coordinate axes is 1 / ax+'1 / by= i, and the

**polar equation**when the focus is the pole and the axis the initial line is r cos 2 6/2 = a.