4) The lemniscate curve (x² + y²)² = 4(x² – y²) was discovered by Jacob Bernoulli in 1694, who noted that it is "shaped like a figure 8, or a knot, or the bow of a ribbon." Find the coordinates of the four points at which the tangent line is horizontal. y 1 FIGURE 9 Lemniscate curve: (x² + y²)² = 4(x² – y²).

Calculus: Early Transcendentals
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ISBN:9781285741550
Author:James Stewart
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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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4) The lemniscate curve (x2 + y)² = 4(x² – y²) was discovered by Jacob Bernoulli in 1694, who noted that it is
-
"shaped like a figure 8, or a knot, or the bow of a ribbon." Find the coordinates of the four points at which the tangent
line is horizontal.
y
1
-1
1
-1t
FIGURE 9 Lemniscate curve: (x2 + y²)² = 4(x² – y?).
-
Transcribed Image Text:4) The lemniscate curve (x2 + y)² = 4(x² – y²) was discovered by Jacob Bernoulli in 1694, who noted that it is - "shaped like a figure 8, or a knot, or the bow of a ribbon." Find the coordinates of the four points at which the tangent line is horizontal. y 1 -1 1 -1t FIGURE 9 Lemniscate curve: (x2 + y²)² = 4(x² – y?). -
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