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Nura Mohammad
Subject: Maths
, asked on 8/2/18
Can we take modulus on both the sides and solve?
Answer
1
Naga Nandhini
Subject: Maths
, asked on 6/2/18
Find the square root of -5+12i
Answer
1
Hermoine
Subject: Maths
, asked on 3/2/18
6
.
I
f
ω
i
s
a
c
u
b
e
r
o
o
t
o
f
u
n
i
t
y
a
n
d
A
=
1
1
1
1
ω
ω
2
1
ω
2
ω
t
h
e
n
A
-
1
e
q
u
a
l
t
o
?
Answer
1
Hermoine
Subject: Maths
, asked on 2/2/18
L
e
t
A
=
1
-
1
1
2
1
-
3
1
1
1
a
n
d
10
B
=
4
2
2
-
5
0
α
1
-
2
3
I
f
B
i
s
t
h
e
i
n
v
e
r
s
e
o
f
m
a
t
r
i
x
A
,
t
h
e
n
α
i
s
(
A
)
-
2
(
B
)
-
1
(
C
)
2
(
D
)
5
Answer
2
Raj Aryan
Subject: Maths
, asked on 31/1/18
Solve this:
Q.56.
∑
i
=
1
∞
∑
j
=
1
∞
∑
k
=
1
∞
1
a
i
+
j
+
k
is equal to, where
a
>
1
(A)
a
-
1
-
3
(B)
3
a
-
1
(C)
1
a
3
-
1
(D) None of these
Answer
1
Raj Aryan
Subject: Maths
, asked on 31/1/18
Please provide the solution
Q.55. The value of
x
1
/
2
.
x
1
/
4
.
x
1
/
8
.
.
.
.
.
upto infinity is:
Answer
1
Raj Aryan
Subject: Maths
, asked on 31/1/18
Please provide the solution
Q.52. If
z
r
=
cos
r
a
n
2
+
i
sin
r
a
n
2
, where r = 1, 2, 3, ...., n, then
lim
n
→
∞
z
1
.
z
2
.
.
.
.
.
.
z
n
is equal to:
Answer
1
Raj Aryan
Subject: Maths
, asked on 31/1/18
Solve this;
Q.51. If
Z
1
≠
0
a
n
d
Z
2
be two complex numbers such that
Z
2
Z
1
is a purely imaginary number, then
2
Z
1
+
3
Z
2
2
Z
1
-
3
Z
2
is equal to:
(A) 2
(B) 5
(C) 3
(D) 1
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 31/1/18
3
.
I
f
k
+
k
+
z
2
=
z
2
∀
k
∈
R
-
1
,
t
h
e
n
a
r
g
z
i
s
A
5
π
4
B
π
3
C
π
2
D
-
π
2
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 31/1/18
Q no 12 ans is -48
Q
.
12
1
+
x
2
=
3
x
,
t
h
e
n
∑
n
=
1
24
x
n
-
1
x
n
i
s
e
q
u
a
l
t
o
(
A
)
48
(
B
)
-
48
(
C
)
±
48
(
ω
-
ω
2
)
(
D
)
n
o
n
e
o
f
t
h
e
s
e
Answer
1
Drishti
Subject: Maths
, asked on 31/1/18
describe the set of complex numbers such that |(z+2-i)/(z+5+4i)|=5
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 29/1/18
Q.3. If
z
1
a
n
d
z
2
are two complex numbers such that
z
1
=
z
2
+
z
1
-
z
2
, then prove that
l
m
z
1
z
2
=
0
.
Answer
2
Kshitiz Anand
Subject: Maths
, asked on 29/1/18
Q no 4 (a) please explain with figure
Q.4.(a). If
z
-
25
i
≤
15
, find the value of |maximum amp z - minimum amp z|.
Answer
1
Sunny Bagde
Subject: Maths
, asked on 27/1/18
if (p+i)
2
/2p-i = μ +iλ, then μ
2
+λ
2
is equal
Answer
1
Shivam
Subject: Maths
, asked on 22/1/18
Q. What is the number of quadratic equation which are unchanged by squaring their roots?
2
4
6
None of these
Q. If equations a
a
x
2
+
2
c
x
+
b
=
0
a
n
d
a
x
2
+
2
b
x
+
c
=
0
(
b
≠
c
)
and have a common root, then a+4b+4c is equal to
0
1
-1
-2
Answer
1
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What are you looking for?
Q.56. is equal to, where
(A)
(B)
(C)
(D) None of these
Q.55. The value of upto infinity is:
Q.52. If , where r = 1, 2, 3, ...., n, then is equal to:
Q.51. If be two complex numbers such that is a purely imaginary number, then is equal to:
(A) 2
(B) 5
(C) 3
(D) 1
Q.4.(a). If , find the value of |maximum amp z - minimum amp z|.
Q. What is the number of quadratic equation which are unchanged by squaring their roots?