Engineering Answers

Solve d^{2}y/dx^{2}-6dy/dx+13y=20e^{3x}cos(1x+5)

Solve d^{3}y/dx^{3}-2d^{2}y/dx^{2}+dy/dx=sinhx+20

Solve d^{2}y/dx^{2}+4y=16sec 2xtan 2x?

Solve d^{2}y/dx^{2}+2dy/dx+y=xsinx

`find the length of the curve y=ln(e^{x}+/e^{x}-1) from x=1 to x=2 `

Evaluate ∫0^{π/2a}asinαxdx,α>0 by using Leibniz formula.`

the tunction f(z)= (z)^{2}/z,z≠0  0,z=0  suntistes -Rieman equations at z=0 Does f (0) exist?`

Find the complete integral of xp +3yq = 2(z-x^2.q^2).

Find the complete integral of p3 +q^3 = 27z.

Find the integral surface of x(y^2+z)p-y( x^2+z)q=(x^2-y^2)z through the straight through the x+y = 0,z = 1.