mando
Most popular questions and responses by mando
linear algebra
Find x such that the matrix is equal to its own inverse. 3,x 2,3
asked on February 12, 2012 
history
which war did the most americans die  american revolutionary war?, WW1, US civil war? or WW2?
asked on May 18, 2015 
unit tangent vector
Find a unit tangent vector to r(t)=e^(2t)i+e^(1)j+(t^2+4)k at (1,1,4).
asked on September 28, 2011 
linear algebra
Use an inverse matrix to solve each system of linear equations. A) x+2y=1 B)x+2y=10 C)x+2y=3 x2y=3 x2y=6 x2y=0
asked on February 12, 2012 
linear algebra
Use an inverse matrix to solve each system of linear equations. A) x+2y=1 B)x+2y=10 C)x+2y=3 x2y=3 x2y=6 x2y=0
asked on February 12, 2012 
linear algebra
Use an inverse matrix to solve each system of linear equations. A) x+2y=1 B)x+2y=10 C)x+2y=3 x2y=3 x2y=6 x2y=0
asked on February 12, 2012 
Calc
Find the point in which the line x=1t, y=3t, z=1+t; meet the plane 2xy+3z=6
asked on September 26, 2011

unit tangent vector
oh ok, now i get it.
posted on September 28, 2011 
unit tangent vector
how does 1/e equal to 1? ∥r'∥ = √(4e^4 + 1 + 4)
posted on September 28, 2011 
unit tangent vector
r(t)=e^(2t)i+e^(t)j+(t^2+4)k at (1,1,4)
posted on September 28, 2011 
unit tangent vector
oh yes it is.
posted on September 28, 2011