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    Can I please ask for your help? I've been given a question, and I cannot solve it. The length of the Tangents from point (4,K) to the circle X^2 + Y^2 = 9 are 4 root 2 (root 32) Find all possible values of the constant K. I can't solve this. Can someone please help?? Thanks. Domo
 
 
 
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