Home
Class 12
MATHS
If 3 * ^(n1-n2)P2=^(n1+n2)P2=90 then th...

If `3 * ^(n_1-n_2)P_2=^(n_1+n_2)P_2=90` then the ordered pair `(n_1 ,n_2)` is

A

(8,2)

B

(7,3)

C

(16,8)

D

(9,1)

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

If ^(^^)(n_(1)-n_(2))P_(2)=132,^(n_(1)-n_(2))P_(2)=30 then

If m and n are +ve integers such that (m+n)P_(2)=90 and m-np_(2)=30, the number of ordered pairs (m,n) of such integers is

if *^(2n-1)P_(n):2n+1_(n-1)=22:7, then n

2.^(n)P_(3)=^(n+1)P_(3)

If ^(m+n)P_2=90 and ^(m-n)P_2=30 find m and n

If .^(n+1)P_(5):^(n)P_(5)=3:2 then n is: