If is a real root of
and
is a real root of
, Then a root of equation
lies between
Let
is root of
, So
is root of
, So
&
are of opposite sign
So has a real root between
&
Option (C)
f (α ) & f (β) are of opposite signs -
Here,
for one
- wherein
Option 1)
This is incorrect
Option 2)
This is incorrect
Option 3)
This is correct
Option 4)
This is incorrect
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