psk981
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psk981:
Group Title
using inner product f,g and the gram schmiddt process find an orthagonal basis for polynomial space spanned by {1,t,t^2,t^3} on (2,2)
 updated one year ago
 22 replies
 No Medals Yet
Mathematics

psk981:
Group Title
need help solving this differential equation
2y^(4)+3y^(3)16y" +15y'4y=0
…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

psk981:
Group Title
Is there a difference between orthogonal basis and orthogonal complement of a subspace
…
 updated one year ago
 25 replies
 No Medals Yet
Mathematics

psk981:
Group Title
find, rank, nullity,row space, column space, null space and left null space of A
 updated one year ago
 24 replies
 2 Medals
Mathematics

psk981:
Group Title
Need Help with finding equilibrium, I have to find 3 values for N
dN/dt=rN(1N/K)(N/A1)
Population is equilibrium at dN/dt=0
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
Need help finding phase portrait but do not know which equation to use and how to find it.
dn/dt= rN(1N/k)
…
 updated one year ago
 4 replies
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Mathematics

psk981:
Group Title
Help needed.
find the largest value the directional derivative of f(x,y,z)=xyz can have at the point (1,1,1)
…
 updated one year ago
 5 replies
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Mathematics

psk981:
Group Title
Help Final exam test review question!!
sketch the region
rewrite the integral by switching order
…
 updated one year ago
 12 replies
 No Medals Yet
Mathematics

MsRed:
Group Title
What is the slope of 5x+2y=4 & 10x+4y=0? Are they parrallel, perpendicular or neither?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
F = (y^2 + 1)i + (x^2 + 4)j and
C : the triangle bounded by y = 0, x + y = 2, y = x.
Use Green’s Theorem to ﬁnd counterclockwise circulati…
 updated one year ago
 11 replies
 No Medals Yet
Mathematics

psk981:
Group Title
A heat seeking particle has the property that at any point (x,y) in the plane it moves in the direction of maximum temperature increase if t…
 updated one year ago
 8 replies
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Mathematics

psk981:
Group Title
Help. Submarine Hunting. Additional and Advanced Excerises chapter 12. Thomas' Calculus.
 updated one year ago
 6 replies
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Mathematics

psk981:
Group Title
need help calc problem
 updated one year ago
 2 replies
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Mathematics

psk981:
Group Title
find a basis for row space and column space
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
la place transforms help
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

psk981:
Group Title
Evaluate: Please look at the integral
 updated one year ago
 34 replies
 2 Medals
Mathematics

natalie135:
Group Title
Use cylindrical coordinates to evaluate the triple integral
∫∫∫sqrt(x2+y2)dV where E is the solid bounded by the circular parabaloid
z=9−1…
 updated one year ago
 11 replies
 1 Medal
Mathematics

psk981:
Group Title
a flywheel has a counter weight. determine the mass of the weight.
the counter weight has a density of 4.7.
the circle has a radius of 4…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
find the inverse laplace transform of (36s^4+12s^2+1)/s^6
 updated one year ago
 3 replies
 1 Medal
Mathematics

psk981:
Group Title
laplace transfrom 5/(s^2+9)
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

psk981:
Group Title
a particle moves around the circle along a path r(t) = cos(t)i + sin(t)j
a) find particle velocity
…
 updated one year ago
 4 replies
 1 Medal
Mathematics

psk981:
Group Title
find the arc length of a curve
 updated one year ago
 30 replies
 No Medals Yet
Mathematics

psk981:
Group Title
find volume of a solid bounded by the sphere rho=6cosphi and above by the cone z=sqrt(x^2+y^2)
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
change to polar and then integrate
 updated one year ago
 17 replies
 2 Medals
Mathematics

psk981:
Group Title
integrate f(x,y)= x^2 +y over a triangular region bounded by (0,0), (1,0),(0,1)
 updated one year ago
 24 replies
 2 Medals
Mathematics

psk981:
Group Title
changing order of integration
 updated one year ago
 25 replies
 1 Medal
Mathematics

psk981:
Group Title
y"+ky=0, y(0)=0, y(pi/2)=0
determine value of k such that problem possesses. trivial solutions, nontrivial solutions.
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

psk981:
Group Title
is the set of functions linearly independent or linearly dependent.
f1(x)= exp(x+2) , f2(x)=exp(x3)
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

psk981:
Group Title
prove that if A is nxn matrix then AA^T is skew symmetric
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

psk981:
Group Title
I need Help with Allee Effect
i have dN/dt= rN(1N/K), after derivation i ended up getting N(t)=K+Ce^(r/K *t).
 updated one year ago
 2 replies
 No Medals Yet
Mathematics
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