1.

If |{:(a,b,a),(b,c,1),(c,a,1):}|=2010 and if |{:(c-a,c-b,ab),(a-b,a-c,bc),(b-c,b-a,ca):}|-|{:(c-a,c-b,c^(2)),(a-b,a-c,a^(2)),(b-c,b-a,b^(2)):}|=p , then the number of positive divisors of p is

Answer»

<P>`36`
`49`
`64`
`81`

Solution :`(d)` `|{:(C-a,c-b,ab-c^(2)),(a-b,a-c,bc-a^(2)),(b-c,b-a,ca-b^(2)):}|=|{:(a,b,1),(b,c,1),(c,a,1):}|^(2)=(2010)^(2)`
`=(2xx3xx6xx67)^(2)=2^(2)3^(2)5^(2)(67)^(2)`
No. of divisors of `P=(2+1)(2+1)(2+1)(2+1)=81`


Discussion

No Comment Found

Related InterviewSolutions