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Byju's Answer
Standard X
Mathematics
Nature of Roots
Find a quadra...
Question
Find a quadratic polynomial whose zeroes are
1
α
and
1
β
. If
α
and
β
are the zeroes of
2
x
2
−
3
x
+
5
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Solution
Given
α
,
β
are the roots of
2
x
2
−
3
x
+
5
=
0
⋯
(
1
)
To get the quadratic equation whose roots are
1
α
,
1
β
Replace
x
by
1
x
in
(
1
)
⟹
2
x
2
−
3
x
+
5
=
0
⟹
5
x
2
−
3
x
+
2
=
0
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Q.
If α and β are the zeros of the quadratic polynomial f(x) = x
2
− 2x + 3, find a polynomial whose roots are (i) α + 2, β + 2 (ii)
α
-
1
α
+
1
,
β
-
1
β
+
1
.