
Fafa L.
asked 07/17/21find tan ( 2 x ) =
If cos(x)=16 (in Quadrant-I),
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1 Expert Answer
MANNY C. answered 07/17/21
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Cos(x) can't be 16 as it has to be between -1 and +1 inclusive.
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Mark M.
-1 <= cosine x <= 107/17/21