14 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.._. what is this ._.
Oh my, this is basically a lotta simplifications.
What's that jump from the z⁸+1/z⁴ step to the next?
Oh right sorry. Consider line number 5, put z=alpha and beta and multiply both sides by alpha^n and beta^n in both the equations and add, then follow through steps further on.
Similar to what you do in Newton's formula.
Then don't you have to multiply by two on the RHS?
Newton?
Oh gotcha. I forgot about the z⁴ on the RHS
a smarter soln
is it possible to think like this in exam tho?
mai hota to demoivers laga ke bash krta
my ass cannot think all this in paper pressure