Pls solve question 20 for brainliest .
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varaddaithankar:
for cbse u do ncert very nicely it will help u in jee mains also pura ratta mar de
especially inorganic
boards ka bhi ho jai ga
I have passed 12 bro
:) srry
This year i
ok best of luck
Ok bye. Nice to have some talk with you buddy.
:)
Bye
Answers
Answered by
1
Answer:
Step-by-step explanation:
See
roots a,b......a+b= -a & ab=b
therefore from these equations a=1;b= -2
now the eqn is
x²+x-2.....1
Take derivative.....2x+1=0...x= -1/2
equation has minimum value at x= -1/2
put x= -1/2 in 1 to get -9/4
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