We would like to understand how a parametric equation represents a curve and distinguish some small differences among similar parametric equations: For the following parametric equations, use a table (shown below) t X у of values of t, x and y to find several points of the curve and then sketch the curve: i) x=- , y=t+6, ii) x = -t+7, y=-5t-5, iii) x = 3 cos 2t, y = 3 sin 2t, -4≤t≤4 -5 ≤ t ≤ 5 0≤t≤ π

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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We would like to understand how a parametric equation represents a curve and distinguish some small differences among similar parametric equations:
For the following parametric equations, use a table (shown below)
t
X
y
of values of t, x and y to find several points of the curve and then sketch the curve:
i) x == -t², y = t + 6, -4≤t≤4
ii) x = −t+7, y=-5t-5,
iii) x = 3 cos 2t, y = 3 sin 2t,
-5 ≤t≤5
0≤t≤ π
Transcribed Image Text:We would like to understand how a parametric equation represents a curve and distinguish some small differences among similar parametric equations: For the following parametric equations, use a table (shown below) t X y of values of t, x and y to find several points of the curve and then sketch the curve: i) x == -t², y = t + 6, -4≤t≤4 ii) x = −t+7, y=-5t-5, iii) x = 3 cos 2t, y = 3 sin 2t, -5 ≤t≤5 0≤t≤ π
Expert Solution
Step 1: Introduction.

Given information:

The parametric equations of three curves are shown below;

i)x=t2,y=t+6,4t4

ii)x=t+7,y=5t5,5t5

iii)x=3cost,y=3sin2t,0tπ

To find:

For each set of parametric equations, find several points on the curve and sketch the curve.

Concept used:

  1. Parametric equations represent a curve in terms of two or more parameters (usually  and  in terms of ).
  2. We can find points on the curve by substituting different values of  within the given range.

Formula Used:

  1. Plug different values of  within the specified range into the parametric equations to calculate corresponding and  values.
  2. Create a table of values for , , and  to represent points on the curve.
  3. Sketch the curve using the points obtained from the table.
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