Math, asked by souravndls, 11 months ago

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

varaddaithankar: especially inorganic

varaddaithankar: boards ka bhi ho jai ga

souravndls: I have passed 12 bro

varaddaithankar: :) srry

souravndls: This year i

varaddaithankar: ok best of luck

souravndls: Ok bye. Nice to have some talk with you buddy.

varaddaithankar: :)

varaddaithankar: Bye

Answers

Answered by varaddaithankar

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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