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Find the value of ""^(10)C(5)+2. ""^(10)...

Find the value of `""^(10)C_(5)+2. ""^(10)C_(4)+""^(10)C_(3)`.

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Prove that ""^(10)C_(3)+""^(10)C_(6)=""^(11)C_(4)

If ""^(9)C_(3)+""^(9)C_(5)=""^(10)C_(r) then find r.

The value of ""^(40) C_(31) + sum _(r = 0)^(10) ""^(40 + r) C_(10 +r) is equal to

If 10. ""^(n)C_(2)=3. ""^(n+1)C_(3) find n.

I : IF ""^(12)C_(r+1) ="" ^(12) C_(3r-5) then r=3 or 4 . II : If ""^(9) C_(3) +""^(9)C_(5) = ""^(10)C_(r) then r=4 or 6.

VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-PREMUTATIONS & COMBINATIONS (VERY SHORT ANSWER TYPE QUESTIONS)
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  3. Find the number of different chains that can be prepared using 7 diffe...

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  5. Find the number of ways of arranging the letters of the word. MATHEM...

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  6. Find the number of ways of arranging the letters of the word. INTERM...

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  9. Find the number of ways of arranging the letters of the word. COMBIN...

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  10. If ""^(n)C(4)=210 then find n.

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  11. If ""^(n)P(r)=5040 and ""^(n)C(r)=210, find n and r.

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  12. If ""^(12)C((s+1))=""^(12)C((2s-5)), then find s.

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  13. If ""^(12)C((s+1))=""^(12)C((2s-5)), then find s.

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  14. If ""^(n)C(21)=""^(n)C(27)" find " ""^(49)C(n)

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  15. If ""^(n)C(5)=""(n)C(6), then find 13(Cn).

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  16. If ""^(9)C(3)+""^(9)C(5)=""^(10)C(r) then find r.

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  17. Find the value of ""^(10)C(5)+2. ""^(10)C(4)+""^(10)C(3).

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  18. Find the number of ways of selecting 4 boys and 3 girls from a group o...

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  19. Find the number of diagonals of a polygon with 12 sides.

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  20. Find the number of positive divisors of 1080

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