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Jeneeta Eliza John
Subject: Maths
, asked on 18/3/18
Please solve
Example 29. Examine the function f (x) =
x
cos
1
x
,
x
≠
0
0
,
x
=
0
for continuity at x = 0.
Answer
2
N I S H I D H A .
Subject: Maths
, asked on 17/3/18
Is it necessary to simplify the answer like this? :/ If so, how do we get that?
7.
2
c
o
t
(
x
2
)
Answer
2
Dipesh Malhotra
Subject: Maths
, asked on 17/3/18
Solve this:
Answer
1
Vibhav
Subject: Maths
, asked on 16/3/18
How to solve Q24
Also how is f(0) = 1
Answer
2
Kartik Arora
Subject: Maths
, asked on 16/3/18
Solve it:
Example 5. Show that the function
f
(x) given by
f
(x)=
e
1
x
-
1
e
1
x
+
1
w
h
e
n
x
≠
0
i
s
d
i
s
c
o
n
t
i
n
u
o
u
s
w
h
e
n
x
≠
0
0
at x=0.
Answer
1
Varnika Dhiman
Subject: Maths
, asked on 16/3/18
Why that cosx got disappeared ?!.. Kindly explain.
Answer
1
Varnika Dhiman
Subject: Maths
, asked on 16/3/18
In this example 41.. it said, root 5 is maximum or minimum. Then, what did we do after we get 3>root5 ?!..
41. Find the maximum and minimum values, if any , of the following function given by.
(
i
)
f
(
x
)
=
(
2
x
-
1
)
2
+
3
(
i
i
)
f
(
x
)
=
9
x
2
+
12
x
+
2
(
i
i
i
)
f
(
x
)
=
-
(
x
-
1
)
2
+
10
(
i
v
)
f
(
x
)
=
x
2
+
1
Answer
1
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
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What are you looking for?
Example 29. Examine the function f (x) = for continuity at x = 0.
7.
Also how is f(0) = 1
Example 5. Show that the function f (x) given by f(x)=
at x=0.
41. Find the maximum and minimum values, if any , of the following function given by.
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