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MAT244--2019F
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Quiz-4
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TUT0101 QUIZ4
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Topic: TUT0101 QUIZ4 (Read 4802 times)
Yiheng Bian
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Posts: 29
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TUT0101 QUIZ4
«
on:
October 18, 2019, 08:41:21 PM »
$$
\text{The question is } 9y''+9y'-4y=0
$$
$$
9r^2+9r-4=0
$$
$$
\text{So r1}=\frac{1}{3}
$$
$$
r2=\frac{-4}{3}
$$
$$
\text{So we can get y}=c_1e^{\frac{t}{3}}+c_2e^{\frac{-4t}{3}}
$$
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Toronto Math Forum
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MAT244--2019F
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MAT244--Test & Quizzes
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Quiz-4
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TUT0101 QUIZ4