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Kabir Chhabra
Subject: Maths
, asked on 22/5/18
Q21. If
f
(
x
)
=
2
cos
x
-
1
c
o
t
x
-
1
∀
x
∈
0
,
π
2
except at
x
=
π
4
. Define
f
π
4
so that f(x) may be continuous at
x
=
π
4
. Ans:
1
2
Answer
1
Kabir Chhabra
Subject: Maths
, asked on 22/5/18
Q
17
.
L
e
t
f
x
=
1
-
sin
3
x
3
cos
2
x
,
i
f
x
<
π
2
a
,
i
f
x
=
π
2
b
1
-
sin
x
π
-
2
x
2
,
i
f
x
>
π
2
.
I
f
f
x
i
s
c
o
n
t
i
n
u
o
u
s
a
t
z
=
π
2
,
f
i
n
d
a
a
n
d
b
.
A
n
s
.
a
=
1
2
a
n
d
b
=
4
Answer
1
Kabir Chhabra
Subject: Maths
, asked on 22/5/18
Q
16
.
F
i
n
d
t
h
e
v
a
l
u
e
o
f
'
a
'
f
o
r
w
h
i
c
h
t
h
e
f
u
n
c
t
i
o
n
'
f
'
d
e
f
i
n
e
d
a
s
:
f
x
=
a
sin
π
2
x
+
1
,
x
≤
0
tan
x
-
sin
x
x
3
,
x
>
0
i
s
c
o
n
t
i
n
u
o
u
s
a
t
x
=
0
.
A
n
s
.
a
=
1
2
Answer
1
Kanishk Sharma
Subject: Maths
, asked on 21/5/18
pls. sovle. the. differenciation. ques
Answer
1
Siddhant
Subject: Maths
, asked on 21/5/18
Please solve this question. Answer is NOT on terms of 'a', 'b', or 'c'.
Answer
2
Vanshika Sharma
Subject: Maths
, asked on 20/5/18
Solve
Q.
lim
h
→
0
a
+
h
2
sin
a
+
h
-
a
2
sin
a
h
Answer
1
Aditya
Subject: Maths
, asked on 19/5/18
Evaluate
Evaluate
lim
x
→
1
x
3
-
3
x
+
2
x
3
+
x
2
-
5
x
+
3
Answer
1
Manasi Mujumdar
Subject: Maths
, asked on 16/5/18
a normal to the hyperbola x square by 4 minus 5 square by 1 is equal to 1 has equal intercepts on the positive x-axis and y-axis if this normal touches the ellipse x square by a square + b square by b square is equal to 1 then a square + b square is equal to?
Answer
1
Ruba Balu
Subject: Maths
, asked on 15/5/18
Solve this :
5
.
If
y
=
e
-
3
log
x
,
then
find
dy
dx
.
Answer
1
Athul Vincent
Subject: Maths
, asked on 15/5/18
Solve 10
Q.10. Prove that the sum of the squares of the reciprocals of two perpendicular diameter of an ellipse is constant.
Answer
1
Vani Singh
Subject: Maths
, asked on 15/5/18
If limit n tends to infinity find limit of r^3-8/r^3+8
Answer
1
Athul Vincent
Subject: Maths
, asked on 15/5/18
Find the lengths of and the equations to the focal radii drawn to the point (4*root3, 5) of the ellipse 25x^2 + 16y^2 =1600.
Answer
1
Vivek Kumar
Subject: Maths
, asked on 14/5/18
How to find these inequalities condition for x?
Answer
1
Gaurav Gupta
Subject: Maths
, asked on 13/5/18
Question 29
Answer
1
Vani Singh
Subject: Maths
, asked on 13/5/18
Solve this:
Answer
3
1
2
3
4
5
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Q.
Q.10. Prove that the sum of the squares of the reciprocals of two perpendicular diameter of an ellipse is constant.