The formulas in the middle of the solution aren\'t showing upand therefore, I am

Question

The formulas in the middle of the solution aren't showing upand therefore, I am unable to understand the solution.
In the equation T=mgcos, where is the 3 before themg coming from. And how did you obtain the angle of 0.63, forpart b. I also cannot see the diagram at the bottom of thesolution. The formulas in the middle of the solution aren't showing upand therefore, I am unable to understand the solution.
In the equation T=mgcos, where is the 3 before themg coming from. And how did you obtain the angle of 0.63, forpart b. I also cannot see the diagram at the bottom of thesolution.

Explanation / Answer

I would really love to help, but I cant see the problem from thesolution. It appears to be a simple pendulum problem but Icant tell for sure and dont want to lead you astray. I cant access the problem itself in the book online here, so if youwould be willing to post the problem as it is presented to you fromthe textbook I would be glad to thoroughly evaluate it for you andclear up any misunderstanding.

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