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DLS Group TitleBest ResponseYou've already chosen the best response.1
Let \(\alpha\) and \(\beta\) be the distinct roots of \(\ ax^2+bx+c=0\) then \[\Huge \lim_{x \rightarrow \alpha} \frac{1\cos(ax^2+bx+c)}{(x\alpha)^2}=?\]
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
Attempt: \[\Large \frac{1cosa(x\alpha)(x\beta)}{(x\alpha)^2}\]
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
\[\lim_{x \rightarrow \alpha}\Large \frac{1cosa(x\beta)}{(x\alpha)}\]
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
1cos(2x)=2 sin^2 x laga.. quadratic ko khol mat.
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
without opening the quadratic it wont solve :/ (xalpha)^2 wont cancel i guess
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
do it.. sin^2 something aayega.. (xalpha)^2 hai.. so [ sin(something)/(xalpha)] ^2 ho jayega..
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
\[\Large \frac{ 2\sin^{2} (ax^2+bx+c)}{(x\alpha)^2}\] this?
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
sorry upon 2 too
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
\[\Large \frac{ 2\sin^{2} \frac{ (ax^2+bx+c)}{2}}{(x\alpha)^2}\]
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
yup. ab quadratic ko (xalpha)(xbeta) likh.. multiply divide by (xbeta)^2 ka whole square.. [sin(xalpha)(xbeta)/(xalpha)(xbeta)]^2 *2(xbeta)^2.. pehli term sinx/x ke form me hai to 1.. bach gya 2(xbeta)^2.. to aa gya. 2*(alphabeta)^2 ??
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
answer to galat hai khair :P
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
pata nhi..
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
\[(a)0\] \[(b) \frac{1}{2}a^(\alpha\beta)^2\] \[(c) \frac{1}{2}^(\alpha\beta)^2\] \[(d) \frac{1}{2}a^2(\alpha\beta)^2\]
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
ohho.. ax^2 + bx + c/2 tha.. :/
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
pta nhi.. aapko kya lgta hai?
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
xbeta wala step (2nd step) samaj nhi aya
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
(xbeta)^2 se multiply divide kr diya..
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
taaki sinx/x vali form ban sake.. [sin(xalpha)(xbeta)/2]^2 hai.. to niche [(xalpha)(xbeta)/2]^2 chahiye.. to (xbeta)^2/4 se multiply krenge..
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
bus ab rukja :P
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
@yrelhan4 (xalpha) nahi use kar sakte (xbeta) ki jagah?
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
kaise? sin me xalpha aur x beta dono hain na.. to dono lane pdenge denominator me..
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
OH :O ab bus rukja :P
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
yo aagaya im the winner :P B hai
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
\[\LARGE \frac{2(\sin \frac{(a(x\alpha)(x\beta)}{2})^2}{(x\alpha)^2} \times \frac{(\frac{a}{2})^2 \times (x\beta)^2}{ (\frac{a}{2})^2 \times (x\beta)^2}\]
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
u forgot about a :P
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
ah.. samajh gya. :/
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
hmm iit. hmm
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
1 ghanta ek question me lag raha hai : ye 5minute ka tha,shubham ko ek minute me strike kar jata :
 one year ago

DLS Group TitleBest ResponseYou've already chosen the best response.1
thanks for the help :)
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.0
haha. :')
 one year ago
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