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Question: second-order differential equation

Question:second-order differential equation

LamyaAbdulla 152 Maple
November 23 2006
0
I have a second-order differential equation dEq := diff(theta(t), t, t) = sin(theta(t)) i would like to find the solution of it, so soln := dsolve({dEq, theta(0) = 0, (D(theta))(0) = 0}, theta(t)) and then plot the solution, that is plot 'theta' vs. 't' but the solution contains weird charecters and I tried many examples on the net but never worked out for me. Can you guys help? thank you in advance.
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