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Shivam
Subject: Maths
, asked on 22/1/18
Please solve question 35
Q.35. If the two equations
x
2
-
c
x
+
d
=
0
&
x
2
-
a
x
+
b
=
0
have one common root and the second has equal roots, then 2 (b + d) =
[1] 0
[2] a + c
[3] ac
[4] - ac
Answer
1
Shivam
Subject: Maths
, asked on 22/1/18
Please solve question 32
Q.32. The expression
a
2
x
2
+
b
x
+
1
will be positive for all
x
∈
R
if
[1]
b
2
>
4
a
2
[2]
b
2
<
4
a
2
[3]
4
b
2
>
a
2
[4]
4
b
2
<
a
2
Answer
1
Shivam
Subject: Maths
, asked on 22/1/18
Please solve question 31
Q.31. If x be real then the value of
x
2
-
2
x
+
1
x
+
1
will not lie between
[1] 0 and 8
[2] - 8 and 8
[3] - 8 and 0
[4] None of these
Answer
1
Saachi Talwar
Subject: Maths
, asked on 21/1/18
Solve this:
I
f
a
k
<
3
,
1
≤
k
≤
n
,
t
h
e
n
a
l
l
c
o
m
p
l
e
x
n
u
m
b
e
r
z
s
a
t
i
s
f
y
i
n
g
e
q
u
a
t
i
o
n
1
+
a
1
z
+
a
2
z
2
+
.
.
.
.
.
.
.
.
+
a
n
z
n
=
0
(
a
)
l
i
e
o
u
t
s
i
d
e
c
i
r
c
l
e
z
=
1
/
4
(
b
)
l
i
e
i
n
s
i
d
e
c
i
r
c
l
e
z
=
1
/
4
(
c
)
l
i
e
o
n
t
h
e
c
i
r
c
l
e
z
=
1
/
4
(
d
)
l
i
e
i
n
1
/
3
<
z
<
1
/
2
Answer
1
Saachi Talwar
Subject: Maths
, asked on 21/1/18
Solve this:
The number of point(s) having integral coordinates in the region
A
∩
B
∩
C
is :
a) 4 b) 5
c) 6 d) 10
Answer
1
Saachi Talwar
Subject: Maths
, asked on 21/1/18
If z is a complex number and a is a real number such that z^2 + az + a^2 =0 then find locus and argument of z.
Answer
0
Saachi Talwar
Subject: Maths
, asked on 21/1/18
9
.
L
e
t
α
+
i
β
,
α
,
β
∈
R
b
e
a
r
o
o
t
o
f
t
h
e
e
q
u
a
t
i
o
n
x
3
+
q
x
+
r
=
0
,
q
,
r
∈
R
,
t
h
e
n
a
r
e
a
l
c
u
b
i
c
e
q
u
a
t
i
o
n
,
i
n
d
i
p
e
n
d
e
n
t
o
f
α
a
n
d
β
,
w
h
o
s
e
o
n
e
r
o
o
t
i
s
2
α
i
s
(
a
)
x
3
+
q
x
-
r
=
0
(
b
)
x
3
+
q
x
+
r
=
0
(
c
)
x
3
-
q
x
-
r
=
0
(
d
)
N
o
n
e
o
f
t
h
e
s
e
Answer
0
Shivam
Subject: Maths
, asked on 19/1/18
22. If x-2 is a common factor of x
2
+ax+b and x
2
+cx+d then
(i) d-b =2(c-a) (2) b-c=(c-a) (c) 4+2c+b=0 (d) b-d =2(c-a)
Answer
1
Shivam
Subject: Maths
, asked on 19/1/18
Q. For what values of p, the roots of the equation 12(p+2)
x
2
- 12(2p - 1)x - 38 p - 11 = 0 are imaginary.
Answer
0
Yayati
Subject: Maths
, asked on 19/1/18
Q
1
a
+
w
+
1
b
+
w
+
1
c
+
w
=
2
w
1
a
+
w
2
+
1
b
+
w
2
+
1
c
+
w
2
=
2
w
2
1
a
+
1
+
1
b
+
1
+
1
c
+
1
=
?
Answer
1
Saachi Talwar
Subject: Maths
, asked on 18/1/18
Please solve Q 10
10.
Complex numbers whose real and imaginary parts x and y are itegers and satisfy the equation
3
x
2
-
x
y
-
2
y
2
+
7
=
0
(A) do not exist (B) exist and have equal modulus
(C) Form two conjugate pairs (D) do not form conjugate pairs
Answer
1
Saachi Talwar
Subject: Maths
, asked on 18/1/18
Please solve Q8
Answer
1
Krithikha B
Subject: Maths
, asked on 9/1/18
What are the real numbers 'x' and 'y', if (x - iy) (3 - 5i) is the conjugate of (-1 - 3i)
Answer
1
Shivam
Subject: Maths
, asked on 7/1/18
If z and ω are two non-zero complex numbers such that |z ω| = 1, and Arg(z) – Arg( ω) = π/2, the
z
ω is equal to
(1) 1 (2) –1 (3) i (4) –i
Answer
1
Vibhansh Agarwal
Subject: Maths
, asked on 7/1/18
Pls solve question
Answer
0
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What are you looking for?
Q.35. If the two equations & have one common root and the second has equal roots, then 2 (b + d) =
[1] 0
[2] a + c
[3] ac
[4] - ac
Q.32. The expression will be positive for all if
[1]
[2]
[3]
[4]
Q.31. If x be real then the value of will not lie between
[1] 0 and 8
[2] - 8 and 8
[3] - 8 and 0
[4] None of these
The number of point(s) having integral coordinates in the region is :
a) 4 b) 5
c) 6 d) 10
(i) d-b =2(c-a) (2) b-c=(c-a) (c) 4+2c+b=0 (d) b-d =2(c-a)
Q. For what values of p, the roots of the equation 12(p+2) - 12(2p - 1)x - 38 p - 11 = 0 are imaginary.
10. Complex numbers whose real and imaginary parts x and y are itegers and satisfy the equation
(A) do not exist (B) exist and have equal modulus
(C) Form two conjugate pairs (D) do not form conjugate pairs
(1) 1 (2) –1 (3) i (4) –i