- #1
dan5
- 9
- 0
Homework Statement
y'' + 24y' +432y = cos (wt)
yp(x) = R(h) cos (ht - ∅(h))
find R(h)
and hbar = value for h which R(h) is max.
and ∅(hbar)
Homework Equations
double angle formula for cos
cos (a-b) = cos a cos b + sin a sin b
The Attempt at a Solution
solving the equation as a quadratic in coefficients on sin and cos, hbar = 12