SOLUTION: finding the real number x for which Lm (tan 40 degrees)+ Lm (tan 50 degrees) +Lm (tan 60 degrees)= 1/2 Lm x

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Question 1107510: finding the real number x for which Lm (tan 40 degrees)+ Lm (tan 50 degrees) +Lm (tan 60 degrees)= 1/2 Lm x
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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What is  (or who is)  Lm ?   ??   ???