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[" If "sin(2cos^(-1)((1)/(sqrt(5))))+cos(2tan^(-1)((1)/(3)))=(p)/(9)," where p & a are relatively prime then digit at units "],[" place of "(p-q)^(2k+1),k in N," can be - "],[[" (A) "1," (B) "3," (C) "7," (D) "9]]

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