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Laieeqa
Subject: Maths
, asked on 16/3/18
Solve this:
Q.
X
=
a
cos
3
θ
Y
=
a
sin
3
θ
F
i
n
d
d
2
y
d
x
2
a
t
θ
=
π
6
.
Answer
3
Dipesh Malhotra
Subject: Maths
, asked on 15/3/18
Solve this:
13. If
y
=
t
e
n
-
1
1
+
x
2
+
1
-
x
2
1
+
x
2
-
1
-
x
2
,
x
2
≤
1
,
t
h
e
n
f
i
n
d
d
y
/
d
x
.
Answer
1
Prerna Varshney
Subject: Maths
, asked on 15/3/18
Q. Find all points of discontinuity of f, where f is defined as follows:
f(x) =
|
x
|
+
3
,
x
≤
-
3
-
2
x
,
-
3
<
x
<
3
6
x
+
2
,
x
≥
3
Answer
1
Hari Nath
Subject: Maths
, asked on 15/3/18
Q.8_pls solve for me
Q. If function f (x) = |x – 3| + | x – 4|, then show that f (x) is not differentiable at x = 3 and x = 4.
Answer
1
Tithi
Subject: Maths
, asked on 15/3/18
Q.2.
L
t
x
→
0
e
x
-
e
-
x
x
is equal to
(A) 2
(B) 0
(C) 1
(D) none of these
Answer
1
Jaison
Subject: Maths
, asked on 14/3/18
verify rolle's theorem f(x)=x(x+3)e^(-x/2) on [-3,0]
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Solve this:
17
.
I
f
f
(
x
)
i
s
c
o
n
t
i
n
o
u
s
a
t
x
=
0
,
f
i
n
d
t
h
e
v
a
l
u
e
o
f
a
a
n
d
k
f
x
=
1
-
1
-
4
x
x
7
x
2
-
8
x
+
14
a
log
(
1
+
7
x
)
5
x
X
>
0
,
X
=
0
,
X
<
0
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Solve this:
Q7.
f
x
=
1
-
cos
4
x
8
x
2
i
f
x
≠
0
m
i
f
x
=
0
Find m if
f
(x) is continuos at x = 0
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Prove that
f
(
x
)
=
sin
x
x
2
+
cos
x
,
x
>
0
4
(
1
-
1
-
x
)
x
x
=
0
,
x
<
0
i
s
c
o
n
t
i
n
o
u
s
a
t
x
=
0
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
2
)
I
f
y
=
tan
x
+
tan
x
+
tan
x
+
.
.
.
∞
,
P
+
(
2
y
-
1
)
d
y
d
x
=
s
e
c
2
x
.
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
↵
Solve
this:
16. If
y
d
x
+
x
log
y
x
d
y
-
2
x
d
y
=
0
P
r
o
v
e
x
3
+
x
2
+
x
+
1
d
y
d
x
=
2
x
2
+
x
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Solve this:
Q22.
f
x
=
x
+
3
,
x
≤
-
3
-
2
x
,
-
3
<
x
<
3
6
x
+
2
,
x
≥
3
, then find points of discontinuity
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
f
x
=
3
a
x
+
b
,
x
>
1
11
,
x
=
1
5
a
x
-
2
b
,
x
<
1
i
s
c
o
n
t
i
n
u
o
u
s
a
t
x
=
1
,
f
i
n
d
a
a
n
d
b
.
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Solve
Answer
1
Erw Trjerth
Subject: Maths
, asked on 14/3/18
Differentiate wrt x
Answer
1
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What are you looking for?
Q. .
13. If
Q. Find all points of discontinuity of f, where f is defined as follows:
f(x) =
Q. If function f (x) = |x – 3| + | x – 4|, then show that f (x) is not differentiable at x = 3 and x = 4.
(A) 2
(B) 0
(C) 1
(D) none of these
Q7.
Find m if f (x) is continuos at x = 0
16. If
Q22. , then find points of discontinuity