AOD Help
It's part of a question i was solving, why is the maxima coming different with wavy curve (right side) and double derivative (left side).... The double derv ans is correct
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@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.This problem happened to me twice
This is one of the questions
can u show the actual que
a= -1/2
b=-3/4
c=3
@Real potato
The double derivative and f' don't seem to match
f"=2x+1 which gives maxima at -2 and min. At 1
It's not 2x+1
Oh I see what happened.
You took -3/2 common, so all the signs are inverted on the wavy curve
Wait that's a thing??
(Like f'=-3/2(x-1)(x+2)
That changes ur ans?
Since when!!!?
Yeah. Because wherever f'(x) was negative, taking out the minus made it positive.
Ahh thanks bro
@Real potato bro check it out it's clear now
Then why did double derivative still give correct ans?
Because in the double derivative to differentiated the whole thing (Including the minus).
Everything is correct. Just that you forgot a minus sign in the wavy curve.
Yo check what i wrote in double derivative, i actually didn't take minus common, so i got correct ans, taking minus would've also made double derivative ans wrong
-3x-3/2 = f"(x)
Oh yeah i did
+solved @Real potato @SirLancelotDuLac @
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