If .^(47)C(4)+underset(r=1)overset(5)(su...

If `.^(47)C_(4)+underset(r=1)overset(5)(sum).^(52-r)C_(3)` is equal to

A

`52_(C)`

B

`51_(C)`

C

`51_(C)`

D

None of these

Verified by Experts

The correct Answer is:

A

If .^(47)C(4)+underset(r=1)overset(5)(sum).^(52-r)C(3) is equal to
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.^(47)C(4)+sum(r=2)^(5).^(52-r)C(3) का मान ज्ञात कीजिए।
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If ""^(47)C(4)+sum(r=1)^(5) ""^(52-r)C(3) is equal to
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सिद्ध कीजिए कि - (i) underset(r=1)overset(5)sum""^(5)C(r ) = 31 , (...
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The value of [""^(47)C(4) +sum (r=1)^(5) ""^(52-r)C(3)] is equal to-
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""^(47)C(4)+""^(51)C(3)+underset(f=2)overset(5)sum ""^(52-j)C(3) किसके...
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underset(r=0)overset(n-1)(sum)(.^(n)C(r))/(.^(n)C(r)+.^(n)C(r+1)) equa...
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If k=underset(r=0)overset(n)(sum)(1)/(.^(n)C(r)), then underset(r=0)ov...
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underset(r=1)overset(n)(sum)r(.^(n)C(r)-.^(n)C(r-1)) is equal to
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