edr1c
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 edr1c
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Questions Answered

edr1c:
Solve the differential equation by means of power series about the ordinary point x=0.
(1+x^2)y''4xy'+6y=0
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

tinamaze91:
Convert the following decimal negative numbers to their 8bit, 2’s complement formulation: 1, 99, 123
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

stranger7:
Calc 3..Find an xyz equation for the plane that is perpendicular to {2,1,1} and goes through the point {1,1,0}
 updated one year ago
 4 replies
 2 Medals
Mathematics

infamous6:
using the laplace transform table and the linearity how do i determin...L{5e^2t +6t^2
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

valeria_fl:
Which of the following are valid probability distributions for a discrete random variable? Check all that apply.
A.(0.01) 11, (0.01) 12, …
 updated one year ago
 4 replies
 1 Medal
Mathematics

crystaljinasena:
Proof that sin x/x = 1
 updated one year ago
 5 replies
 2 Medals
Mathematics

cha12:
How do I multiply the problem and simplify to lowest terms?
…
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

SkyFlame:
I'm having trouble solving a differential equation using Laplace Transforms.
y''''  2y'' + y = 0
…
 updated one year ago
 21 replies
 2 Medals
Mathematics

isaidrawr:
Heeelp! (See comment & attachment)
 updated one year ago
 3 replies
 1 Medal
Mathematics

DeejayMixx:
find the area of the shaded sector
 updated one year ago
 14 replies
 2 Medals
Mathematics

edr1c:
the flow rate of gas through a pipe is given by V=(cd^(1/2))/(T^(t/6)), with c = constant, d is the diameter of the pipe and T is the absolu…
 updated one year ago
 1 reply
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Mathematics

edr1c:
Find the surface area of revolution generated by revolving the cardioid about the xaxis:
 updated one year ago
 28 replies
 No Medals Yet
Mathematics

edr1c:
if we are about to approximate sin 2.2 with taylor polynomial of sin 2x about x=1, its sin2(1.1)? just substitute x=1.1 into the polynomial?
 updated one year ago
 4 replies
 1 Medal
Mathematics

edr1c:
show that the curve has 3 points of inflection and they all lie on 1 straight line:\[y=\frac{1+x}{1+x^{2}}\]
 updated one year ago
 14 replies
 2 Medals
Mathematics

edr1c:
Show that,
 updated one year ago
 50 replies
 4 Medals
Mathematics

Alice24:
1. (4x^2+12x16/2x+10) / (6x+24/x^2+9x+20)
2. (1/x3) +(4/x) / (4/x)  (1/x3)
3. (1/36) (1/x^2) / (1/6)(1/x)
 updated one year ago
 8 replies
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Mathematics

katyaer:
Find the magnitude and direction of the vector. Round the length to the nearest tenth and the degree to the nearest unit. Diagram is not dra…
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

SCOOTYBOOT:
2x+78=9
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

bonoballa:
find derivative using limit of 4/x = f(x)
 updated 2 years ago
 21 replies
 2 Medals
Mathematics

edr1c:
partial decomposition:
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

edr1c:
is there any way to calculate decomposition of fraction through a scientific calculator? sometimes its so tedious, i scare i dont have enoug…
 updated 2 years ago
 12 replies
 No Medals Yet
Mathematics

edr1c:
simplify:
 updated 2 years ago
 20 replies
 1 Medal
Mathematics

virtus:
What is the pH of a solution that contains 1.2 moles of nitric acid (HNO3) and 1.7 moles of hydrochloric acid (HCl) dissolved in 1000 liters…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

kaisan:
simplify this expression:
sinx + cosxcotx
 updated 2 years ago
 6 replies
 4 Medals
Mathematics

Mohawksgirl:
(c^3)(d^2)/(c4)(d5) =
(c^3)/(c^4) x (d^2)/(d^5)
Where do i go from here?
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

parksbap:
using the discriminant, determine the # of real solutions of the quadratic equation. 6x^2+5x7=0
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

liliy:
find the arc length of the graph of y= x^4/8 + 1/(4(x^2)) . x is between 1 and 2
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

edr1c:
laplace transform of heaviside function using shifting theorem
 updated 2 years ago
 31 replies
 2 Medals
Mathematics

edr1c:
sorry, another heaviside laplace transform (attachment)
 updated 2 years ago
 3 replies
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Mathematics

edr1c:
shifting theorem for laplace transform of a heaviside function
 updated 2 years ago
 4 replies
 3 Medals
Mathematics
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