[" Q."8quad " cot "5^(@)-tan5^(@)-2tan10...

[" Q."8quad " cot "5^(@)-tan5^(@)-2tan10^(@)-4tan20^(@)-8cot40^(@)],[" is equal to - "],[[" (A) "0," (B) "8tan40^(@)],[" (C) "8tan80^(@)," (D) None of these "]]

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