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Mathematics
Mathematics
Problem
If the A.M. of the roots of a quadratic equation is
8
5
\frac{8}{5}
5
8
and A.M. of their reciprocals is
8
7
\frac{8}{7}
7
8
, then the quadratic equation is - (A)
5
x
2
−
8
x
+
7
=
0
5x^2 - 8x + 7 = 0
5
x
2
−
8
x
+
7
=
0
(B)
5
x
2
−
16
x
+
7
=
0
5x^2 - 16x + 7 = 0
5
x
2
−
16
x
+
7
=
0
(C)
7
x
2
−
16
x
+
5
=
0
7x^2 - 16x + 5 = 0
7
x
2
−
16
x
+
5
=
0
(D)
7
x
2
+
16
x
+
5
=
0
7x^2 + 16x + 5 = 0
7
x
2
+
16
x
+
5
=
0
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