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Suroj Dey
Subject: Maths
, asked on 21/4/18
Q.44 plz answer fast!
Q44. Let f (x) be a polynomial of degree three such that f (0) = 1, f (1) = 2. If 0 is a critical point of f (x) which doesn't have local extremum at x = 0 then
∫
f
x
x
2
+
7
dx
=
(A)
1
3
x
2
+
7
3
2
-
7
x
2
+
7
1
2
+
log
x
+
x
2
+
7
+
c
(B)
1
3
x
2
+
7
3
2
+
7
x
2
+
7
1
2
+
log
x
+
x
2
+
7
+
c
(C)
1
3
x
2
+
7
3
2
+
7
x
2
+
7
1
2
-
log
x
+
x
2
+
7
+
c
(D) none of these
Answer
1
Muhammad Arafath R Z
Subject: Maths
, asked on 18/4/18
Solve this:
I
f
I
1
=
∫
0
1
e
-
x
cos
2
x
d
x
,
I
2
=
∫
0
1
e
-
x
2
cos
2
x
d
x
a
n
d
I
3
=
∫
0
1
e
-
x
3
d
x
;
t
h
e
n
:
1
.
I
3
>
I
1
>
I
2
2
.
I
2
>
I
3
>
I
1
3
.
I
3
>
I
2
>
I
1
4
.
I
2
>
I
1
>
I
3
Answer
1
Muhammad Arafath R Z
Subject: Maths
, asked on 18/4/18
Q.
lim
x
→
0
x tan 2 x - 2 x tan x / (1-cos 2 x)
2
equal (a) 1 (b)-1/2 (c) 1/4 (d) 1/2
Answer
1
Muhammad Arafath R Z
Subject: Maths
, asked on 18/4/18
Q. The value of integral
∫
π
/
4
3
π
/
4
x
1
+
sin
x
d
x
i
s
:
(
a
)
π
2
(
2
+
1
)
(
b
)
π
2
(
c
)
2
π
(
2
-
1
)
(
d
)
π
(
2
-
1
)
Answer
1
Apurva Inamdar
Subject: Maths
, asked on 17/4/18
Please answer 16th question
Answer
1
Apurva Inamdar
Subject: Maths
, asked on 17/4/18
30th question
Answer
1
Apurva Inamdar
Subject: Maths
, asked on 17/4/18
5th question
Answer
1
Laieeqa
Subject: Maths
, asked on 15/4/18
Solve this:
Q60.
∫
sin
2
x
sin
2
x
+
2
cos
2
x
d
x
=
(1) log ( 1 + cos
2
x ) + C (2) log ( 1 + tan
2
x) + C
(3) – log (1 + sin
2
x) + C (4) – log (1 + cos
2
x ) + C
Answer
1
Shobhit De
Subject: Maths
, asked on 10/4/18
integrate (x^2 + 1)dx/(2x +1)(x-1)(x+1)
Answer
1
Arshak Shan
Subject: Maths
, asked on 2/4/18
integrate (1/square root(1+x^4)
Answer
1
Dipesh Malhotra
Subject: Maths
, asked on 2/4/18
15
15
.
T
h
e
i
n
t
e
g
r
a
l
∫
0
π
1
+
4
sin
2
x
2
-
4
sin
x
2
d
x
e
q
u
a
l
s
:
a
4
3
-
4
b
4
3
-
4
-
π
3
c
π
-
4
d
2
π
3
-
4
-
4
3
Answer
3
Aditi Dubey
Subject: Maths
, asked on 30/3/18
Find the critical points of f ( x )=x 1+ 3 ( x−4) . Identify the intervals on which f is increasing and decreasing. Find function’s local and absolute extreme values.
Answer
1
Aditi Dubey
Subject: Maths
, asked on 30/3/18
Find Integration of (3x-2)/(x+1)^2(x+3)
Answer
1
Shri Ganesh
Subject: Maths
, asked on 29/3/18
please help me solve this question
20
.
∫
log
x
-
1
(
1
+
log
x
2
2
d
x
i
s
e
q
u
a
l
t
o
(
2005
)
1
)
log
x
(
log
x
)
2
+
1
+
C
2
)
x
x
2
+
1
+
C
3
)
x
e
x
1
+
x
2
+
C
4
)
x
log
x
2
+
1
+
C
Answer
1
Kevan Mehta
Subject: Maths
, asked on 26/3/18
Q
72
.
T
h
e
v
a
l
u
e
o
f
lim
x
→
0
+
∫
1
cos
x
cos
-
1
t
d
t
2
x
-
sin
2
x
i
s
e
q
u
a
l
t
o
:
A
0
B
-
1
C
2
3
D
-
1
4
Answer
1
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What are you looking for?
Q44. Let f (x) be a polynomial of degree three such that f (0) = 1, f (1) = 2. If 0 is a critical point of f (x) which doesn't have local extremum at x = 0 then =
(A)
(B)
(C)
(D) none of these
Q60.
(1) log ( 1 + cos2 x ) + C (2) log ( 1 + tan2 x) + C
(3) – log (1 + sin2 x) + C (4) – log (1 + cos2x ) + C