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If (n+3)! =56 x (n+1)!, Find the value o...

If (n+3)! =56 x (n+1)!, Find the value of n.

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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
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  2. A regular polygon of 10 sides is constructed. In how many way can 3...

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  3. If (n+3)! =56 x (n+1)!, Find the value of n.

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  4. If .^15 C(3r):^(15)C(r+1)=11 :3 , find the value of rdot

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  5. If the ratio .^2n C3:^n C3 is equal to 11:1 find ndot

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  14. Which term of the GP 3,6,12,24, ... is 3072?

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  15. If .^(56)P(r+6):^(54)P(r+3)=30800 :1, find r.

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