Mathematics
Senior High
この2問教えて下さい！
6. 次の条件を満たす時, 3次関数を求めなさい.
•æf" (x) + (3+x)f'(x)-3f(x) = 0
7. 次の問題を解きなさい
次の条件式を満たす a, b を求めよ.
y = e + e-2x,y" + 3ay' + by = 0
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