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[" 30.The value of "(C(1))/(2)+(C(3))/(4...

[" 30.The value of "(C_(1))/(2)+(C_(3))/(4)+(C_(5))/(6)+..." is equal to "],[[" (a) "(2^(n)-1)/(n+1)," (b) "n*2^(n)],[" (c) "(2^(n))/(n)," (d) "(2^(n)+1)/(n+1)]]

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The value of expression (C_(1))/(2)+(C_(3))/(4)+(C_(5))/(6)+.... is equal to (where C_(r)=^(n)C_(r) )

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