5. Determine the equations of the lines tangent to the curve x²y + 2xy² = x + 6y when x = 2.
5. Determine the equations of the lines tangent to the curve x²y + 2xy² = x + 6y when x = 2.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter5: Graphs And The Derivative
Section5.3: Higher Derivatives, Concavity, And The Second Derivative Test
Problem 74E
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Hi, I need help with this. Please only use the formulas I have provided. Please write it so that I can read it! Thank you so much!
![MULTIPLE DERIVATIVES
A function fis-times differentiable (or fE C") if you can apply
the derivative times to fand have a continuous function after
each application of the derivative.
A function fis smooth (orf E C) if it can be differentiated
infinitely many times, and each derivative is a continuous
function
Linearity:
Products:
Quotients:
Compositions:
DERIVATIVE PROPERTIES
d
[f(x) + a· g(x)] = f(x) + a · g(x)
dx
d
dx
[ƒ(x)g (x)] = f(x)g (x) + f(x)g'(x)
d f(x)
dx [g(x)]
d
dx
f(x)g(x) = f(x)g'(x)
(g(x)) ²
where g(x) = 0
[ƒ (g(x))] = f(g(x)) · g'(x)
TANGENT AND NORMAL LINES
If y=f(x) describes some differentiable function, the equation of
the tangent line at a point
is given by
y = f(x)(x − a) + f(a).
The equation of the normal line at a point
(x-a) + f(a).
If fis differentiable near
f (a)
is given by
LINEAR APPROXIMATION
then for values close to,
f(x) = f(a)(x-a) + f(a).
Constant:
Power:
Exponential:
Logarithmic:
BASIC FUNCTION DERIVATIVES
Trigonometric:
Hyperbolic:
d
dx
d
dx
d
dx
d
dx
d
dx
d
d
[b] = ln(b) b*, where b € (0,0)
dx
d
dx
[a] = 0, where a
d
dx
M
dx
d
dx
d
dx
Inverse Trigonometric:
d
dx
d
dx
d
dx
=x²-¹, where
[log(x)] =
[sin(x)] = cos(x)
[cos(x)]=sin(x)
[tan(x)] = sec²(x)
[sec(x)] = sec(x)tan(x)
[cot(x)]=-csc²(x)
[csc(x)]=csc(x)cot(x)
[arcsin(x)]
[arccos(x)]
In(b) x
[arctan(x)]
1+x²
where b, x € (0,00)
[sinh(x)] = cosh(x)
[cosh(x)] = sinh(x)
where x = ±
where x ±
C
ZOOM +](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4b0f97a-89e5-4466-a6e2-73ccf61a13a9%2F3ab0f606-1d2c-4166-be4e-b6cdf34992e9%2Fpmb4kt7_processed.png&w=3840&q=75)
Transcribed Image Text:MULTIPLE DERIVATIVES
A function fis-times differentiable (or fE C") if you can apply
the derivative times to fand have a continuous function after
each application of the derivative.
A function fis smooth (orf E C) if it can be differentiated
infinitely many times, and each derivative is a continuous
function
Linearity:
Products:
Quotients:
Compositions:
DERIVATIVE PROPERTIES
d
[f(x) + a· g(x)] = f(x) + a · g(x)
dx
d
dx
[ƒ(x)g (x)] = f(x)g (x) + f(x)g'(x)
d f(x)
dx [g(x)]
d
dx
f(x)g(x) = f(x)g'(x)
(g(x)) ²
where g(x) = 0
[ƒ (g(x))] = f(g(x)) · g'(x)
TANGENT AND NORMAL LINES
If y=f(x) describes some differentiable function, the equation of
the tangent line at a point
is given by
y = f(x)(x − a) + f(a).
The equation of the normal line at a point
(x-a) + f(a).
If fis differentiable near
f (a)
is given by
LINEAR APPROXIMATION
then for values close to,
f(x) = f(a)(x-a) + f(a).
Constant:
Power:
Exponential:
Logarithmic:
BASIC FUNCTION DERIVATIVES
Trigonometric:
Hyperbolic:
d
dx
d
dx
d
dx
d
dx
d
dx
d
d
[b] = ln(b) b*, where b € (0,0)
dx
d
dx
[a] = 0, where a
d
dx
M
dx
d
dx
d
dx
Inverse Trigonometric:
d
dx
d
dx
d
dx
=x²-¹, where
[log(x)] =
[sin(x)] = cos(x)
[cos(x)]=sin(x)
[tan(x)] = sec²(x)
[sec(x)] = sec(x)tan(x)
[cot(x)]=-csc²(x)
[csc(x)]=csc(x)cot(x)
[arcsin(x)]
[arccos(x)]
In(b) x
[arctan(x)]
1+x²
where b, x € (0,00)
[sinh(x)] = cosh(x)
[cosh(x)] = sinh(x)
where x = ±
where x ±
C
ZOOM +
Transcribed Image Text:5. Determine the equations of the lines tangent to the curve x²y + 2xy² = x + 6y when x = 2.
6. Use linear approximation to estimate the value of log(99). To how many decimal places is the linear approximate
accurate?
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