### Derivative at a Point (3 Problems)

Find the value of the derivative of the function at the indicated point. f(x)= 1/3 (2x^3 - 4) point (0, -4/3) h(x)= x/(x - 5) point (6,6) f(t)= (2t^2 - 3)/3t point (2, 5/6)

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Find the value of the derivative of the function at the indicated point. f(x)= 1/3 (2x^3 - 4) point (0, -4/3) h(x)= x/(x - 5) point (6,6) f(t)= (2t^2 - 3)/3t point (2, 5/6)

G(t)= 3t^2 / sqrt (t^2 + 2t - 1) The number N of bacteria in a culture after t days is modeled by: N= 400 [ 1- 3/ (t^2 + 2)^2] Complete the table. What can you conclude? t 0 1 2 3 4 dN/dt _ _ _ _ _

Find the derivative of the functions. f(x)= x(3x - 9)^3 y= x sqrt(2x + 3) y= t^2 sqrt (t - 2)

Y= 4x^3/2 /x

Find the derivative of the functions. y= 1/ x-2 s(t)= 1/ t^2+ 3t- 1 f(x)= 1/ (x^2- 3x)^2 y= 1/ (sqrt x + 2)

Find the derivatives of the functions y=x^2 + 2x/x y=3x^2 - 4x/6x f(x)= 3^sqrt x (sqrt x + 3) f(x)= 3x- 2/2x - 3

4.) Ever wonder why bacteria are so hard to contain ? A certain coloney of bacteria has an initinal population of 10,000. After t hours, the coloney has grown to a number P(t) given by P(t) = 10000(1+.86t + t^2). a.) Find the growth rate (rate of change) of the population P with respect to time t. [FInd P'(t)] b.) Fi

Please see the attached file for full problem description. 3. Use Cauchy-Riemann equations and the given theorem to show that the function _ f (z) = e^z is not analytic anywhere. Theorem: Suppose that f (z) = u (x, y) + i v (x, y) and that f'(z) exists at a point z0 = x0 + i y0. Then the first-

Show that the composite function G (z) = g (2z - 2 + i) is analytic in the half plane x > 1, with derivative .... see attachment

Consider a Lagrangian system, with configuration space R^n, given by (x^1, ... x^n); and Lagrangian L(x', ..., x^n; v^1, ... v^n). Now consider a new system of coordinates, (y^1,... ^n), for this same system, so the y's are functions of the x's; and, inverting, the x's are also functions of the y's. Find the Lagrangian in the y-

41) Suppose that the average yearly cost per item for producing x items of a business product is C(x)=10+(100/x) . if the current production is x=10 and production is increasing at a rate of 2 items per year, find the rate of change of the average cost. 45) Suppose a 6ft tall person is 12 ft away from a 18-ft tall lamppost. i

Find the Derivative y'(x) implicitly. 1) 3xy³-4x = 10yy² 2) sinxy= x² - 3 3) 3x+y³-4y = 10x² 4) xe^(power y) -3ysinx = 1 5) cos y - y² = 8 6) e^x² - 3y = x² + 1 Find the Equation of the Tangent Line at the Given Point. 7) x³ - 4y² = 4 at ( 2,1) 8) x³y² = -3xy at (-1

What is the derivative of f(x) = 4x(x2 + 1)3 ?

What is the derivative of f(x) = sin(xx) for x > 0?

Let f(x) = sin(2x + 1) and g(x) = x3 + 3 for all real x. Which of the following is equal to the derivative of the composite function f[g(x)]?

Let f(x) = 2sin x. Then f"(0) =

Let f(x) =x^2 ln x -(x^3 + 3)/2x for x>0. Then f'(x) =

If f(x) = xe^x/sin(x) for 0<x<PI, then f' (x) = ?

The volume (in gallons) of water in a tank after t hours is given by f(t) = 600 sin^2(Pi*t/12) for 0 <= t <= 6. What is the rate of flow of water into the tank, in gallons per hour?

Give a simple proof or counterexample to disprove: If tangent vector p E Rn is such that the directional derivative of f by k vanished for every function f then k =0. If function f on Rn is such that the directional derivative of f by every tangent vector at every point vanishes, then f is constant. The directional deri

If f(x) = x^4 - 4x^3 + 10 find the relative extrema of the function and the points of inflection of its graph. Also, sketch the graph of the function. a. The x-value(s) of the relative minima of function f: ________________ b. The x-value(s) of the relative maxima of function f: _______________ c. The x-value(s) of poi

12. Use implicit differentiation to find the slope of the curve y^2 - y + 2x = 0 at the point (x,y)=(0,1). (See attachment for full questions) 13. A spherical balloon is leaking...

Find the absolute maximum and minimum of f(x)= x^3 - 3x for -1<=x<=3. (See attachment for full questions)

X^2-2xy+y^3=5 find dy/dx using implicit differentiation using product rule

Please assist me with the attached problems, relating to first principles and Leibniz Notation.

Please See Attachment. Suppose f: R  R is differentiable and let Show that

Let (see equation in attached file) - find all the directional derivatives of f at 0 - is f continuous at 0? - Is f differentiable at 0?

Find the derivative of f(x)= (3-4x^2)/(x^2-x-6) and then determine intervals of increase/decrease,local max and min values and points of concavity or inflection.

2. The Gompertz equation y'(t) = y[a-b*ln(y)] is an important model for avascular tumor growth. In the avascular growth phase, tumor cells obtain nutrients directly from the surrounding tissue. (The transition from avascular to vascular growth is marked by the onset of angiogenesis, the formation of blood vessels, which are

I need to determine how fast a shadow is moving up a wall. Given the heigth of the wall the height if the object that cast the shadow. The length of the wire the object moves on, and the height of the light that casts the shadow. I have worked out the first sections in an Excel 2000 spreadsheet but I need a push in the right di