CGL 2012 Tier 2 Preparations and Results

(x-a)(x-b)(x-c)................( x-z) = ?


@sampras said:
sahi hai kya...
bhai ye sunday ke railway exam ka qn tha i dont know the ans
@pathakrahul said: (x-a)(x-b)(x-c)................( x-z) = ?
0 .... (x-x)
@pathakrahul
@pathakrahul said: if x = 3 then ( x^4 - 13x^2 + 36 ) = ?
0
@pathakrahul said: (x-a)(x-b)(x-c)................( x-z) = ?
ye kya hai??? O.o

the factors of ( x^3 - 5x^2+8x-4) are


@Brooklyn said:
ye kya hai??? O.o
wt???????????

guys goinf for lunch meet u after 15 min.............

@sampras said:
Ans is 10 .... my take
@pathakrahul said:
bhai ye sunday ke railway exam ka qn tha i dont know the ans
given : x=(rt3+1)/2 ...... 2x-1 = rt3 ..... squaring... 2x^2-2x-1 = 0

now given eqn ... 4x^3+2x^2-8x+7 = (2x^2-2x-1)(2x+3) + 10 = 10 ..... Ans
@pathakrahul said: guys goinf for lunch meet u after 15 min.............
lunch ?????????
@pathakrahul
@Brooklyn said:
ye kya hai??? O.o
(x-a)(x-b)(x-c)................( x-z) = ?

@pathakrahul said: the factors of ( x^3 - 5x^2+8x-4) are
1,2

@truly.gone said:
samprass bhai jab,.....aaaa sala m malik hummmmmmmmm
kya hai bhai ye ... samjh nahi aaya...

bhai log kuch eng bhi post karo.... 200 marks ke liye sirf gine chune pages...

@pathakrahul said:
nahi bhai aisi baat nahi ha i .......... below i am posting the same qn if u get the ans plz reveal the methodbhai ye qn kal ke railway ke section engineer ke paper mein aaya tha..maine qn note kiya lekin opn nahi........so sorry...........isi section mein 2 qn thaa... first to maine pahle hi post kar diya hai....second wala bhi put karta hoon...if x = (root3 + 1)/2 then 4x^3+2x^2 - 8x + 7 is....
iska answer hai....????

mine is coming 18....?

error :

were i you/ i should have not/ allowed him to stay in hostel.
@sampras said:
given : x=(rt3+1)/2 ...... 2x-1 = rt3 ..... squaring... 2x^2-2x-1 = 0
now given eqn ... 4x^3+2x^2-8x+7 = (2x^2-2x-1)(2x+3) + 10 = 10 ..... Ans
@truly.gone said:
assalammalikhum......ko torke likha thaa
waliiiikkkkumassalaaaaam.... bhai jaan

dyed in the wool?

@watsnew24 said:
iska answer hai....????mine is coming 18....?
chk my soln its 10 ... for sure...
@sampras said: error :
were i you/ i should have not/ allowed him to stay in hostel.
I would not have