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"Prove that "(""^(4n)C(2n))/(""^(2n)C(n)...

`"Prove that "(""^(4n)C_(2n))/(""^(2n)C_(n))=(1.3,5......(4n-1))/({1.3.5....(2n-1)}^(2))`

A

`[ 1.3.5. . . (4n-1)][1.3.5 . . .(2n-1)]`

B

`[1.3.5. . .(4n-1)]:[1.3.5. . . (2n-1)]^2`

C

`[1.3.5. . . (4n-1)]^2 :][1.3.5. . . (2n-1)]`

D

`[1.3.5. . .(4n-1)]^2"[1.3.5. . . (2n-1)]^2`

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
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  2. ""^(n) C(r-1) = 330 ,""^(n)C(r)=462 , ""^(n)C(r+1) = 462 implies r=

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  3. "Prove that "(""^(4n)C(2n))/(""^(2n)C(n))=(1.3,5......(4n-1))/({1.3.5....

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