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Laieeqa
Subject: Maths
, asked on 22/2/18
Solve this:
Q.7. Find whether the function
cos
2
x
+
π
4
;
3
π
8
<
x
<
5
π
8
is increasing or decreasing.
Answer
1
Riya Verma
Subject: Maths
, asked on 21/2/18
Determine the interval, where f(x)=sin x - cos x, 0
Answer
1
Riya Verma
Subject: Maths
, asked on 21/2/18
In case(a) step no.3 , instead of taking x-1 can't we take x-3 or x+1 given in above step ?and the intervals will be different. If not then explain with reason.
Answer
2
Sofiya Parihar
Subject: Maths
, asked on 12/2/18
Solve question no.37
Q.37. Find the equations or tangent and normal to curve
x
=
1
-
cos
θ
a
n
d
y
=
θ
-
sin
θ
at
θ
=
π
4
.
Answer
1
Sofiya Parihar
Subject: Maths
, asked on 12/2/18
Solve question no 31 and 32
Q.31.
f
x
=
log
1
+
x
-
x
1
+
x
,
x
≠
-
1
Q.32.
f
x
=
x
+
2
e
-
x
Answer
1
Ashwini.. .
Subject: Maths
, asked on 10/2/18
How we find distance of a normal of a curve from origin (0,0)
Answer
1
Ashwini.. .
Subject: Maths
, asked on 10/2/18
Solve this: .
Q.6 Show that the normal at any pointe to the curve x = a cos
θ
+ a
θ
sin
θ
, y = a sin
θ
- a
θ
cos
θ
is at a constant distance from the origin.
Answer
2
Ashwini.. .
Subject: Maths
, asked on 10/2/18
Find the point on the curve
y
2
= 8
x
+ 3 for which the
y
-coordinate changes 4 times more than coordinate of
x
.
Answer
1
Sofiya Parihar
Subject: Maths
, asked on 9/2/18
7) Find the equation of tangent to the curve
y
=
x
4
-
6
x
3
+
13
x
2
-
10
x
+
5
a
t
p
o
i
n
t
x
=
1
,
y
=
0
.
8) Find the equation of tangent to the curve
4
x
2
+
9
y
2
=
36
a
t
t
h
e
p
o
i
n
t
(
3
cos
θ
,
2
sin
θ
)
.
Answer
1
Jassimrat Kaur
Subject: Maths
, asked on 4/2/18
Please solve the question
Q. If at each point on the curve y =
x
1
–
ax
2
+
x
+1 the tangent is inclined at an acute angle with positive direction of x axis , then
(a) a > 0 (b) a
≤
3
(c) |a|
≤
3
(d) none of these
Answer
1
Mitali
Subject: Maths
, asked on 30/1/18
Kindly solve.. this is a meritnstion question but i doubt it's solution... pls refer
Q5. Three distinct points A, B and C are given in the 2 - dimensional coordinate plane such that the ratio of distance of any one of them from the point (1,0) to the distance from the point (– 1, 0) is equal to
1
3
. Then the circumcvented of the triangle ABC is at the point
(A) ( 0, 0)
(B)
5
4
,
0
(C)
5
2
,
0
(D)
5
3
,
0
Answer
1
Akshit Chaturvedi
Subject: Maths
, asked on 30/1/18
The length of the shortest normal chord of the parabola y
2
= 4x is what ?
Answer
1
Riya Verma
Subject: Maths
, asked on 30/1/18
In qno.15 does 16ml needs to be converted into cm as other units are also in cm? Explain with proper reason
Q15. Oil is leaking at the rate of 16 mI./s from a vertically kept cylindrical drum containing oil. If the radius of the drum is 7 cm and its height is 60 cm, find the rate at which the level of the oil is changing when the oil level is 18 cm.
Answer
1
Riya Verma
Subject: Maths
, asked on 30/1/18
Plz solve qno.18
Q.18. Find an angle x which increases twice as fast as its sine.
Answer
1
Riya Verma
Subject: Maths
, asked on 30/1/18
Plz solve qno.14 in brief with formulas
Answer
1
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What are you looking for?
Q.7. Find whether the function is increasing or decreasing.
Q.37. Find the equations or tangent and normal to curve at .
Q.31.
Q.32.
Q.6 Show that the normal at any pointe to the curve x = a cos + a sin , y = a sin - a cos is at a constant distance from the origin.
8) Find the equation of tangent to the curve
Q. If at each point on the curve y = x1 – ax2 + x +1 the tangent is inclined at an acute angle with positive direction of x axis , then
(a) a > 0 (b) a (c) |a| (d) none of these
Q5. Three distinct points A, B and C are given in the 2 - dimensional coordinate plane such that the ratio of distance of any one of them from the point (1,0) to the distance from the point (– 1, 0) is equal to . Then the circumcvented of the triangle ABC is at the point
(A) ( 0, 0)
(B)
(C)
(D)
Q15. Oil is leaking at the rate of 16 mI./s from a vertically kept cylindrical drum containing oil. If the radius of the drum is 7 cm and its height is 60 cm, find the rate at which the level of the oil is changing when the oil level is 18 cm.
Q.18. Find an angle x which increases twice as fast as its sine.