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Evaluate: `tan{2t a n-1 1/5-pi/4}`

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in Trigonometry by (123k points)
Evaluate: `tan{2t a n-1 1/5-pi/4}`
A. `(-17)/(7)`
B. `(-7)/(17)`
C. `(17)/(7)`
D. `(7)/(17)`
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Correct Answer - B
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