19-03-09 The other root?

Now a sitter after the toughie yesterday!

1+√2 is the root of

x3+bx+a

find a and b? if both are rationals...

11 Answers

21
tapanmast Vora ·

b = -5

1
The Scorpion ·

roots are 1+sqrt.2 , 1-sqrt2, -2...

=> a=-2 and b=-5 ...

62
Lokesh Verma ·

cool tapan and khadeer :)

atleast 2 guys were reading carefully what the QOD yesterday was ;)

I hope you all realize now how the "small" result just trivializes everything! funny ;)

21
tapanmast Vora ·

YEAH!!!!1

that deduction was real cuul

aise thode aur Deductions mil jaye to mano har mushkil aasan!! [1]

11
Mani Pal Singh ·

11
Mani Pal Singh ·

sorry guys i didnt saw the posts above[2]

62
Lokesh Verma ·

mani.. kal ka QOD padha tha? (Did u read yesterday's QOD?)

21
tapanmast Vora ·

Here cums da DIFF.

mani did very well to solv da que but took atleast a coupl of mins more n chances of calc mist tooooo reduce in da methd MAK n me used

SO QOD JAI HO!!!

11
Mani Pal Singh ·

BHEJA FRY
KAL ,ERE PASS COMPUTER NAHIN THA
MAINE BATAYA THA
I GOT IT AT NIGHT
SO

I AM SORRY

BUT GLAD NOW I GOT IT

1
Philip Calvert ·

i also missed on yesterdays QOD [2]......
but i had to revise all that boolean.....
as it is i am being unfair to comp sc for so many days.... at the thought of chemistry i thought i better hide this ;)

62
Lokesh Verma ·

philip did u see the QOD now?

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