



 
Farzan, I get two answers, not three or six. What are the values you get? Are some close? That could be a rounding/approximation limitation in the software. Refer again to your earlier question. You can use the quadratic formula to solve for x, and thence for R. I get the following expression using the same variables as in the earlier message: Thus, that ± will create two values for R. Cheers,  


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