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May
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Aug
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asked What is a cyclic integral?
Jul
27
awarded  Yearling
Jul
6
comment How can I find the area of the shadow?
It is easy to see that the shadow is circle with center at C and radius EC or CD I'm sorry I do not see how this is the case. As @JosuéMolina mentioned, why can't it be an oval?
Jul
6
comment How can I find the area of the shadow?
@BenMillwood I'm sure the shape changes but the area might be constant.
Jul
6
asked How can I find the area of the shadow?
Jun
8
awarded  Caucus
Feb
1
comment Solve $\theta''+g\sin(\theta)=0$
@yoyo I simplified a step further & got this equation : $\frac{d\theta}{\sqrt{2C+2gcos\theta}}=dt$ I'm not sure I can integrate this.
Feb
1
awarded  Commentator
Feb
1
comment Solve $\theta''+g\sin(\theta)=0$
Thanks. Seems obvious now that you have shown it.
Feb
1
comment Solve $\theta''+g\sin(\theta)=0$
Can you explain how it is in separable form? I'm a beginner so please bear with me..