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Sketch the curves defined by the given sets of parametric equations. Indicate the direction of motion on each curve. x=sint,y=cost,t[0,4π]x=sint,y=cost,t[0,4π]

Short Answer

Expert verified

The graph

Step by step solution

01

Given information

The parametric curves, x=sint,y=cost,t[0,4π]

02

Calculation

The goal is to draw the parametric curve.

Assume that you want to draw a graph for the parametric equations t=0,π2,π,2π,4π

Find the values of x,yby substituting different tvalues in the parametric equations.

The point (x,y)When t=0is,

(x,y)=(sint,cost)[since by substituting t=0]

(x,y)=(sin0,cos0)simplify

(x,y)=(0,1)

The point (x,y)When t=π2is,

(x,y)=(sint,cost)(x,y)=sinπ2,cosπ2[since by substitutingt=1(x,y)=(1,0)simplify

The point (x,y)When t=πis,

(x,y)=(sint,cost)(x,y)=(sinπ,cosπ)[since by substitutingt=π](x,y)=(0,-1)simplify

The point (x,y)When t=2πis,

(x,y)=(sint,cost)(x,y)=(sin2π,cos2π)[since by substitutingt=2π](x,y)=(0,1)simplify

The point (x,y) When t=4π is,

(x,y)=(sint,cost)(x,y)=(sin4π,cos4π)[since by substitutingt=1](x,y)=(0,1)simplify
03

Calculation

The tabular representation of the points is as follows,

The graphical representation is shown below,

Therefore, the solution is the required graph.

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