A curve C C\,C has the parametric equations
x=5−3sintx = 5 - 3\sin tx=5−3sint, y=4+2costy = 4 + 2\cos ty=4+2cost, where 0≤t<2π 0 \leq t < 2\pi\,0≤t<2π
Show that a Cartesian equation for C C\,C is
(x−5)29+(y−4)24=1\displaystyle \frac{(x - 5)^2}{9} + \frac{(y - 4)^2}{4} = 19(x−5)2+4(y−4)2=1
178 exam-style questions on OCR (MEI) A Level Maths 1.5 Coordinate Geometry, covering 1.5.1 Equation of a straight line y = mx + c, 1.5.2 Gradients of parallel and perpendicular lines, 1.5.3 Distance between two points, 1.5.4 Midpoint of a line segment, 1.5.5 Form the equation of a straight line, 1.5.6 Draw a line given its equation, 1.5.7 Point of intersection of two lines, 1.5.8 Straight line models, 1.5.9 Intersection of a line and a curve, 1.5.10 Intersection of a line and a circle, 1.5.11 Equation of a circle, 1.5.12 Circle properties, 1.5.13 Parameter and parametric equations (A-level only), 1.5.14 Convert between cartesian and parametric forms (A-level only), 1.5.15 Equation of a circle in parametric form (A-level only), 1.5.16 Gradient of a parametric curve (A-level only), 1.5.17 Parametric equations in modelling (A-level only), and 1.5 Coordinate Geometry. Each one has a worked solution and a mark scheme showing where the marks go.