Home
Class 12
MATHS
If (""^n P(r-1))/a=(""^n Pr)/b=("^n P(r+...

If `(""^n P_(r-1))/a=(""^n P_r)/b=("^n P_(r+1))/c` then

A

`b^(2)=a(b+c)`

B

`c^(2)=a(b+c)`

C

`ab=a^(2)+bc`

D

`bc=a^(3)+b^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    BITSAT GUIDE|Exercise BITSAT Archives|13 Videos

  • MATRICES

    BITSAT GUIDE|Exercise BITSAT Archives |8 Videos

  • PROBABILITY

    BITSAT GUIDE|Exercise BITSET ARCHIVES|16 Videos

Similar Questions

Explore conceptually related problems

If ""^(n)P_(r) = ""^(n)P_(r+1) and ""^(n)C_(r) = ""^(n) C_(r-1) then the value of r is equal to

If ""^(n)P_r = ""^(n)P_(r+1) and ""^(n)C_r = ""^(n)C_(r-1) ,then the values of n and r are

If ^(n)P_(r)=^(n)P_(r+1) and ^(n)C_(r)=^(n)C_(r-1, then the ) value of n+r is.

Prove that: (i) ""^(n)P_(n)=""^(n)P_(n-1) " (ii) "^(n)P_(r)=n* ""^(n-1)P_(r-1) " (iii) "^(n-1)P_(r)+r* ""^(n-1)P_(r-1)=""^(n)P_(r)

(n_(P_(r))/(n_(C_(r))))=