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Prithika
Subject: Maths
, asked on 24/5/18
12 th q:
12
.
If
α
,
β
are
the
roots
of
the
equation
x
2
-
x
-
1
=
0
then
find
the
value
of
1
+
α
1
-
α
+
1
+
β
1
-
β
=
?
A
3
B
-
4
C
7
D
9
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
8) the number of real roots of equation x(x+2) (x
2
-1)-1=0 are
(A) 0 (B) 4
(C) 3 (D) 2
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
6th
Q. If
α
and
β
are the roots of quadratic equation (x – 2) (x – 3) + (x – 3) + (x + 1) (x +1) (x – 2) = 0. then the value of
1
α
+
1
β
+
1
+
1
α
-
2
β
-
2
+
1
α
–
3
β
–
3
is
(A) 1 (B) –1
(C) 0 (D) 2
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
4 and 5 th
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
2th
Answer
2
Prithika
Subject: Maths
, asked on 24/5/18
2th
2.
The value(s) of a for which one of the roots of x
2
+ (2a + 1) x + (a
2
+ 2) = 0 is twice the other root is
(
A
)
4
(
B
)
-
4
(
C
)
0
(
D
)
-
2
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
11 th
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
13 th q
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
1st and 2nd
Q1. Solve for x : 4.2
2x +1
– 9.2
x
+ 1 = 0.
Q2. Solve for x :
x
1
-
x
+
1
-
x
x
=
2
1
6
.
Answer
2
Prithika
Subject: Maths
, asked on 24/5/18
10th
10. Find the range of values of 'a' if the roots of the equation x
2
+a
2
=8x+6a are real.
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
Q.7. Find the condition that one root of the equation
a
x
2
+
b
x
+
c
=
0
may be double of the other.
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
30 th
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
7th
Answer
1
Prithika
Subject: Maths
, asked on 24/5/18
Ist q
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
30 th
30.
Sachin and Rahul attempted to solve a quadratic equation. Sachin made a mistake in writing down the constant term and ended up in roots (4, 3). Rahul made a mistake in writing down coefficient of x to get roots (3, 2). Find correct roots of the equation.
Answer
2
1
2
3
4
5
Next
What are you looking for?
(A) 0 (B) 4
(C) 3 (D) 2
Q. If are the roots of quadratic equation (x – 2) (x – 3) + (x – 3) + (x + 1) (x +1) (x – 2) = 0. then the value of is
(A) 1 (B) –1
(C) 0 (D) 2
2. The value(s) of a for which one of the roots of x2 + (2a + 1) x + (a2 + 2) = 0 is twice the other root is
Q1. Solve for x : 4.22x +1– 9.2x + 1 = 0.
Q2. Solve for x : .
10. Find the range of values of 'a' if the roots of the equation x2+a2=8x+6a are real.
30. Sachin and Rahul attempted to solve a quadratic equation. Sachin made a mistake in writing down the constant term and ended up in roots (4, 3). Rahul made a mistake in writing down coefficient of x to get roots (3, 2). Find correct roots of the equation.