Home
Class 12
MATHS
""^(15)P(8)=A+8.""^(14)P(7 )implies A=...

`""^(15)P_(8)=A+8.""^(14)P_(7 )implies A=`

A

`""^(14)P_(6)`

B

`""^(14)P_(s)`

C

`""^(15)P_(7)`

D

`""^(16)P_(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PARABOLA, ELLIPSE AND HYPERBOLA

    SIA PUBLICATION|Exercise Problems|65 Videos

  • PROPERTIES OF TRIANGLES, HEIGHTS AND DISTANCES

    SIA PUBLICATION|Exercise Problems|54 Videos

Similar Questions

Explore conceptually related problems

If ""^(8)P_(r)=""^(8)P_(r+1) then r is

""^(15)C_(8)+""^(15)C_(9)-""^(15)C_(6)-""^(15)C_(7) is equal to

IF ""^(20)P_(r):""^(20)P_(r-1)=15 :1 then r=

(d)/(dx) [(x +1)(x^2+1)(x ^(4) + 1) (x ^(8) +1)]=(15 x ^(p) -16x^q+1) (x-1) ^(-2) implies (p,q)=

A=[(2,3),(2,-1)]implies8A^(-1)=

(8 + x) (14 -x) = ___

"Cos"(2pi)/15."Cos"(4pi)/15."Cos"(8pi)/15."Cos"(14pi)/15=

If P_(1),P_(2),P_(3) are altitudes of a DeltaABC then show that P_(1)P_(2)P_(3)=((abc)^(2))/(8R^(3))=(8Delta^(3))/(abc)

SIA PUBLICATION-PERMUTATIONS AND COMBINATIONS -Problems
  1. A bag contains n white and n black balls . Pairs of balls are ...

    Text Solution

    |

  2. the number of five digit numbers divisible by 5 that can be for...

    Text Solution

    |

  3. ""^(15)P(8)=A+8.""^(14)P(7 )implies A=

    Text Solution

    |

  4. If ""^((n+1))C(3)+""^((n-1))C(4)gt""^(n)C(3), then the minimum value o...

    Text Solution

    |

  5. Let n=1! +4! +7! +. . . +400 ! then ten's digit of n is

    Text Solution

    |

  6. Let a(n)=(10^(n))/(n!) for n = 1, 2, 3,… then the greatest value of n ...

    Text Solution

    |

  7. A polygon has 14 diagonals. Then, the number of its sides is

    Text Solution

    |

  8. The number of subsets of (1, 2, 3...9) containing at least one even nu...

    Text Solution

    |

  9. P points are chosen on each of the three coplanar lines. The maximum n...

    Text Solution

    |

  10. A binary sequence is an array of '0' s and 1's . The number o...

    Text Solution

    |

  11. 9 balls are to placed in 9 boxes : and 5 of the balls cannot ...

    Text Solution

    |

  12. If ""^(n)P(r)=30240and ""^(n)C(r)=252 then the ordered pair (n,r)...

    Text Solution

    |

  13. Find the number of ways of arranging 8 men and 4 women around a circul...

    Text Solution

    |

  14. IF a polygon of n sides has 275 diagonals then n=

    Text Solution

    |

  15. Eight different letters of an alphabet are given . Words of f...

    Text Solution

    |

  16. The number of natural numbers less than 1000, in which no two dig...

    Text Solution

    |

  17. A three digit number n is such that the last two digits of it ...

    Text Solution

    |

  18. s(1),s(2) ...............,s(10) are the speakers in a conference, If s...

    Text Solution

    |

  19. A person who tosses an unbiased coin gains two points for turning up a...

    Text Solution

    |

  20. The number of positive odd divisors of 216 is

    Text Solution

    |