contestada

Use variation of parameters to find a particular solution of (y'' + 25y = tan(5x)).
a) (y_p = Asin(5x) + Bcos(5x) + {1}/{50}sin(5x))
b) (y_p = Asin(5x) + Bcos(5x) + {1}/{25}sin(5x))
c) (y_p = Asin(5x) + Bcos(5x) + {1}/{5}sin(5x))
d) (y_p = Asin(5x) + Bcos(5x) + {1}/{10}sin(5x))

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