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help pleasee? who knows the answer? tan4@+tan2@/1-tan4@tan2@ a.tan6@ b.cot6@ c.tan4@ d.cot4@

Mathematics
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@tcarroll010 can you help?
that reminds me of a double angle forumla for tangent ... maybe

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Other answers:

if not double angle, than either addition or subtraction of angles
im not sure how to do either..
doesnt matter much, its just a recognition of the formula .... which is what this question is testing
since 4 and 2 are not the same, and 4-2 = 2 is not in the options ... i assume that tan 4+2 is the results
so the answer would be A?
if my memory serves ... id bet on A
thank you very much!
good luck :)

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