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Integrals

Evaluate an Integral

Please see the attached file for the fully formatted problems. Reverse the order of integration to evaluate S 2 ---> 0 S 1 ---> y/2 cos(x^2) dxdy

Compute the volume of a solid.

A solid has a rectangular base in the x,y-plane with sides parallel to the coordinate axes and with opposite comers at points (0,0) and (4,6). The solid's sides are vertical, and the top is determined by the plane z = 3x + y. Compute the volume of the solid.

Evaluating an Integral using Jordan's Lemma

The problem is: Evaluate the integral from 0 to INF of: [(x^(1/3))*(ln x)]/(x^2 +9) dx by using f(z)= [(z^(1/3))*(Log z)]/(z^2 +9), with -pi/2 < Log z < 3pi/2. Also, with z^(1/3)= e^[(1/3)Log z]. We are to use the curve C: from -R to -p, -p to p around origin, p to R, and Cr from 0 to pi. Many thanks in advance

Evaluating an Integral using Jordan's Lemma

The problem is to find the value of the integral from 0 to INF of [(ln x)^2]/(x^2 +9). We are to use f(z)= [(Log z)^2]/(z^2 +9), where -pi/2 < Log z < 3pi/2. We are to use the curve C from -R to -p along the real axis, -p to p around 0, p to R along the real axis, and the curve Cr from 0 to pi. I am having several probl

Definite Integral

Please see the attached file for the fully formatted problem. Integrate : S x sin 2x dx pi--> 0

Area Under a Curve

Please see the attached file for the fully formatted problems. Find the area under the curve from x = 0 to x = 2 of y = ½ x^2 + 1

Alberti Cipher Disk and Enigma Cipher

Why did the Alberti Cipher disk have numbers on it? Describe how the disk was used. What made it secure? What was the impact of this disk on cryptology? How does enciphering and deciphering differ on the Enigma? What weakness in the Enigma did the Poles use to break Enigma ciphers?

Find the volume below the surface z

Please see attached sheet for full equations. Find the volume below the surface z and above the subdomain D of the positive quadrant , bounded by the curves and y=z+2.

Integration Problem

Please see the attached file for the fully formatted problems. Evaluate the integration of x squared times the square root of x + 1

Laplace : Relating Transform of a Function and Transform of the Derivative

Please see the attached file for the fully formatted problems. Problem statement: What really makes Laplace transforms work for differential equations is the relationship between the transform of a function and the transform of the derivative of that function. Therefore, the formula you will prove below is key to all that

Integral Domains Fields and Subfields

Problem: Note: Q is rational numbers, R is real numbers , sqrt() means square root Show that Q(sqrt(2)) is the smallest subfield of R that contains sqrt(2).

Representation of the Dirac Delta Function

Please see the attached file for the fully formatted problems. Show that is a representation of the Dirac S-function. Discussion: Let and let f(x) be a function which is piecewise continuous on [?a, a], in particular, (Dirac delta function) one must show that One way of doing this is to follow the approach u

Integrating Periodic Functions

Please see the attached file for the fully formatted problems. Suppose that f(x + 2pi) = f(x) is an integrable functionof period 2pi. Show that S f(x) dx 2pi + a ---> a = S f(x) dx 2pi ----> 0 where a is any real number.

Integration By Trigonometric Substitution: Solving Trickier Problems?

Hello! I'm having trouble using Trigonometric Substitution to find the anti-derivative of non-simple integrands. For details on my situation, please consult my missive, which I've included as an attachment in MS Word '95 (WordPad compatible) and Adobe PDF (ver 3+) files. (The files contain identical information; if you can re

Curve Sketching, Integration, Stationary Points and Asymptotes

Please see the attachment for the full question. I require full, detailed, step by step workings for all sections of this problem Coursework 2 Question 2 a) For the curve with the equation y = x^3 + 3x^2 - 2 i) Find the position and nature of any stationary points. ii) Make up tables of signs for y, y' and y''. Us

Curve Sketching, Integration, Stationary Points and Asymptotes

Please see question attached. I require full detailed, step by step solutions to each section of this question. Coursework 2 Question 1 a) For the curve with equation: S 4x/(x^2 + 1) dx i) Find the position and nature of any stationary points. ii) Determine whether the function is even, odd (or neither), and fi

Multivariable Calculus : Iterated Integral

( f ^n_r means that n is on the top of the f and r is on the bottom) Evaluate the iterated integral: f ^(pi/2)_0 f ^(pi/2)_0 cos x sin y dy dx f: is the integral symbol

Multivariable Calculus: Triple Integral - Cylindrical Coordinates

Question: Solve by triple integration in cylindrical coordinates. Assume that each solid has unit density unless another density function is specified: Find the volume of the region bounded above by the spherical surface x^2 + y^2 + z^2 = 2 and below by the paraboloid z = x^2 + y^2.

Multivariable Calculus : Triple Integral

Compute the value of the triple integral &#61682; &#61682; &#61682;_T f(x, y, z) dV: f(x, y, z) = xyz; T lies below the surface z = 1 - x^2 and above the rectangle -1*x*1, 0*y*2 in the xy-plane. &#61682;: is the integral symbol

Multivariable Calculus : Integral

Please show all work; don't explain each step. Please DON'T submit back as an attachment.Thank you. (  ^n_r means that n is on the top of the  and r is on the bottom) Sketch the region of integration, reverse the order of integration, and evaluate the resulting integral:  ^1_0  ^1_y