91
You visited us
91
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Common Roots
If the equati...
Question
If the equation x^2-bx+1=0 does not possess real roots. Then ______________
Open in App
Solution
The
given
equation
is
x
2
-
bx
+
1
=
0
.
Comparing
it
with
Ax
2
+
Bx
+
C
=
0
,
we
get
A
=
1
;
B
=
b
;
C
=
1
Now
,
D
=
B
2
-
4
AC
=
b
2
-
4
For
no
real
roots
,
D
<
0
⇒
b
2
-
4
<
0
⇒
b
+
2
b
-
2
<
0
⇒
-
2
<
b
<
2
Suggest Corrections
0
Similar questions
Q.
If the equation
x
2
−
b
x
+
1
=
0
does not possess real roots, then
Q.
If the equation
a
x
2
+
b
x
+
6
=
0
does not have two distinct real roots, then the least value of
3
a
+
b
Q.
For what values of m does not the equation
m
x
2
−
(
m
+
1
)
x
+
2
m
−
1
=
0
possess no real roots
Q.
If the quadratic equation
a
x
2
+
b
x
+
6
=
0
does not have distinct real roots, then the least value of
2
a
+
b
is
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Relation of Roots and Coefficients
MATHEMATICS
Watch in App
Explore more
Common Roots
Standard XII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Solve
Textbooks
Question Papers
Install app