Questions Asked

lawlzlawlteamedward:
Find the general solution of the equation
\[(x+y^3)dx + (3y^53xy^2)dy = 0\]
by reducing to a homogenous solution by using an appropriate …
 updated one month ago
 1 reply
 No Medals Yet

lawlzlawlteamedward:
Solve the initial value problem.
\[(x^2\sin^2(y))dx+xsin(2y)dy = 0, y(1) = \frac{ \pi }{ 3 }\]
…
 updated 2 months ago
 18 replies
 1 Medal

lawlzlawlteamedward:
Solve the initial value problem:
\[(x^2\sin^2y)dx+xsin(2y)dy = 0\]
…
 updated 2 months ago
 3 replies
 No Medals Yet

lawlzlawlteamedward:
Solve the following initial value problem:
(lny+2x1)y' = 2y, y(1) =e
…
 updated 2 months ago
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lawlzlawlteamedward:
Solve the following differential equation:
\[\frac{ dy }{ dx } = \frac{ x+2y+1 }{ 2x+4y1 }\]
…
 updated 2 months ago
 3 replies
 1 Medal

lawlzlawlteamedward:
Convert the integral from rectangular coordinates to cylindrical coordinates.
 updated 5 months ago
 1 reply
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lawlzlawlteamedward:
Limit as x approaches pi/2
 updated one year ago
 2 replies
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lawlzlawlteamedward:
Find (f^1)'(0) for f(x)=cot(2x) on [0, pi/2]
Answer should be pi/4 but how do you get it?
 updated one year ago
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lawlzlawlteamedward:
Let y=2x^2. Choose a point (x,y) in the first quadrant that is on this curve. Then form a rectangle in the first quadrant using the points …
 updated one year ago
 2 replies
 3 Medals

lawlzlawlteamedward:
Find the area of the region in the plane bounded by x=2 on the left, x=5 on the right, below by the parabola y=x^225 and above by the line …
 updated 2 years ago
 5 replies
 2 Medals

lawlzlawlteamedward:
The density of Si is 2.33g/cm^3. About how many si atoms are in a chip of pure si with dimensions 1mm x 1mm x .1 mm. (The atomic mass of Si …
 updated 2 years ago
 No Medals Yet

lawlzlawlteamedward:
Find a second degree polynomial with integer coefficients that has (2+i) as one of its zeros and whose constant term is 5.…
 updated 2 years ago
 1 reply
 2 Medals

lawlzlawlteamedward:
Find a second degree polynomial with integer coefficients that has (2+i) as one of its zeros and whose constant term is 5.
 updated 2 years ago
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lawlzlawlteamedward:
Express the following algebraic expression in terms of x.
 updated 2 years ago
 3 replies
 1 Medal

lawlzlawlteamedward:
Use the Principle of Mathematical Induction to show that the following statement is true for all natural numbers n.…
 updated 2 years ago
 1 reply
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lawlzlawlteamedward:
Use the Principle of Mathematical Induction to show that the following statement is true for all natural numbers n.
 updated 2 years ago
 7 replies
 1 Medal

lawlzlawlteamedward:
Find the inverse of the function F(x) = 5+ln(x+1)
 updated 2 years ago
 2 replies
 1 Medal

lawlzlawlteamedward:
Express the following as an algebraic expression in x.
 updated 2 years ago
 1 reply
 No Medals Yet

lawlzlawlteamedward:
Use the Principle of Mathematical Induction to show that n^3+2n+6 is divisible by 3 for all natural numbers n.
 updated 2 years ago
 1 reply
 1 Medal

lawlzlawlteamedward:
Let z=25i
a)Write z in polar form.
b) Find the complex number z^3 and express it in polar form.…
 updated 2 years ago
 1 reply
 1 Medal

lawlzlawlteamedward:
Rewrite the expression as an algebraic expression in x and y (that is, with no trigonometric functions):…
 updated 2 years ago
 4 replies
 1 Medal

lawlzlawlteamedward:
Rewrite the expression as an algebraic expression in x and y (that is, with no trigonometric functions):…
 updated 2 years ago
 1 reply
 No Medals Yet

lawlzlawlteamedward:
Solve the equation for x. Round to three decimal digits.
sin(x) = 3cos(x)
 updated 2 years ago
 1 reply
 1 Medal

lawlzlawlteamedward:
Let x=4(tan(t)) with t in the first quadrant. Simplify the expression
 updated 2 years ago
 2 replies
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lawlzlawlteamedward:
Prove the following identity.
[sin(x+y)+sin(xy)]/[cos(x+y)+cos(xy)] = tan(x)
 updated 2 years ago
 7 replies
 3 Medals

lawlzlawlteamedward:
Find the magnitude and direction (in degrees) of the vector.…
 updated 2 years ago
 1 reply
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lawlzlawlteamedward:
Is 4[cos(25155)+isin(25155)] = [4(cos(130)isin(130))]?
I need someone to check my answer.
 updated 2 years ago
 4 replies
 1 Medal

lawlzlawlteamedward:
Write z=4 in polar form.
 updated 2 years ago
 1 reply
 No Medals Yet

lawlzlawlteamedward:
Write the complex number in polar form with argument theta between 0 and 2pi.
 updated 2 years ago
 2 replies
 No Medals Yet

lawlzlawlteamedward:
Rewrite the expression as an algebraic function of x and y.
 updated 2 years ago
 1 reply
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