y''+y=1/cosx
x/x a^2-9<0
n% of 600 is 240
4-0.65
26.Apply Laplace transform solve the differential equation 𝑦
′′ − 3𝑦
′ + 2𝑦 = 𝑒
−𝑡
given 𝑦(0) = 1, 𝑦
′(0) = 0.
9(w-3)(w+3)
9(w-9)(w+9)
0.5×1.3
$2^{23624}$
