Entered Answer Preview Result (e^6)*t*[cos(sqrt(20)*t)+sin(sqrt(20)*t)]+16* [e^(6*t)]*cos(4*t)+8*[e^(6*t)]*sin(4*t)+8 e't cos ( v20t ) + sin(v20t) ) + 16et cos(4t) + 8et sin(4t) + 8 incorrect The answer above is NOT correct. Use the method of undetermined coefficients or the method of differential operators to find one solution of y" - 12y + 56y = 64eot cos(4t) + 32eot sin(4t) + 8et (It doesn't matter which specific solution you find for this problem.) e^6t(cos(sqrt(20)t)+sin(sqrt(20)t))+16e^(6t)*cos(4t)+8e^(6t)*sin(4t)+8 y =