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solve 0+1*cos(pi/4)*t=1+v*cos(pi/3)*t, 0+1*sin(pi/4)*t-0.5*9*t^2=0+v*sin(pi/3)*t-0.5*9*t^2
solve 0+1*cos(pi/4)*t=1+v*cos(pi/3)*t, 0+1*sin(pi/4)*t-0.5*9*t^2=0+v*sin(pi/3)*t-0.5*9*t^2
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