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Integrate x*(5e^x)

Using integration by parts let U=x therefore du=dx.Let dv=5e^x therefore v=5e^x.answer = x*5e^x - integral(5e^x) = (x-1)(5e^x)

MS
Answered by Maximillian S. Maths tutor
3786 Views

Differentiate y=(5x^4)cos(2x)

Using chain and product rule.dy/dx=(20x^3)cos(2x) - (10x^4)sin(2x)

MS
Answered by Maximillian S. Maths tutor
4417 Views

A matrix M has eigenvectors (3,1,0) (2,8,2) (1,1,6) with corresponding eigenvalues 1, 6, 2 respectively. Write an invertible matrix P and diagonal matrix D such that M=PD(P^-1), hence calculate M^5.

Without even knowing M, the candidate can calculate M^5. This will follow from the fact that P is the matrix consisting of the eigenvectors of M as columns, and D will have the eigenvalues (in matching co...

CB
Answered by Cameron B. Maths tutor
3149 Views

A smooth 4g marble is held at rest on a smooth plane which is fixed at 30 degrees to a horizontal table. The marble is released from rest - what speed is the marble travelling at 5 seconds after being released? Let g = 9.8ms^2

This question involves forces and kinematics. First begin by drawing the situation and identifying the forces acting on the marble. The weight of the marble acts vertically downwards and is equal to the m...

MR
Answered by Maya R. Maths tutor
3098 Views

Differentiate the function; f(x)=1/((5-2x^3)^2)

We know from the properties of basic indices that a-x=1/ax, so 1/((5-2x3)2=(5-2x3)-2 where in this case, a=5-2x3and x=2. Then t...

BK
Answered by Benjamin K. Maths tutor
5230 Views

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