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apple_pi Group TitleBest ResponseYou've already chosen the best response.0
if α and β are the roots of equation 4x^2  2x  1 = 0, find α  β
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
use formula : α  β =  (sqrt(D)/a)  with D=b^24ac
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.0
oh yeah... forgot to put  without finding the roots So like using αβ = c/a and α+β=b/a
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
right, but ur problem to find value of α  β?
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.0
yes. find α  β
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
we know that general form of a quadratic equation is ax^2+bx+c=0 so, we can find α  β with formula : α  β = abs(sqrt(D)/a)
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
You can always count on finding the roots and assuming them as \(\alpha, \beta\).
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
\[x = {2 \pm \sqrt{4  4(4)(1)} \over 8}\]
 2 years ago

apple_pi Group TitleBest ResponseYou've already chosen the best response.0
@ParthKohli, without finding roots
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
yea, right to.. but should use absolut sign because not known α > β or α < β
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
so, what ur answer ?
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
yea, or (sqrt(5))/2 ?
 2 years ago
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