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If (4cos^(2)((pi)/(20))-3)(4cos^(2)(3 pi...

If `(4cos^(2)((pi)/(20))-3)(4cos^(2)(3 pi/20)-3)=tan(A pi)` ,where A is a rational number lying in `(0,(1)/(2))`, and expressed in the lowest form as `(p)/(q)`. Find (p+q) .

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