QUIZ 3 - FINAL : Homogeneous DE

Find the Laplace transform of f(t) =sin2tcos2t.

The roots of the equation 2y'' -5y' -3y = 0 are

• real and distinct

• complex and distinct

• real and repeated

• complex and repeated

Solve the equation y" +4y' + 7y = 0.

• none of the choices

The roots of the equation y''' + 3y'' - 4y = 0 are

• 1, -2 , -2

• -1, -2, -2

• -2, 1, 2

• 1, 2, 2

• real and distinct.

• real and repeated.

• complex and distinct.

• complex and repeated.