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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
$\frac{1}{3}$
. Then the circumcvented of the triangle ABC is at the point
(A) ( 0, 0)
(B)
$\left(\frac{5}{4},0\right)$
(C)
$\left(\frac{5}{2},0\right)$
(D)
$\left(\frac{5}{3},0\right)$
Answer
1
Guna Shekar
Subject: Maths
, asked on 30/1/18
Please solve
Q77. Consider the point
A
= (3, 4),
B
= (7, 13). If
P
be a point on the line
y
=
x
such that
PA
+
PB
is minimum, then coordinates of
P
is
(1)
$\left(\frac{13}{7},\frac{{\displaystyle 13}}{{\displaystyle 7}}\right)$
(2)
$\left(\frac{23}{7},\frac{{\displaystyle 23}}{{\displaystyle 7}}\right)$
(3)
$\left(\frac{31}{7},\frac{{\displaystyle 31}}{{\displaystyle 7}}\right)$
(4)
$\left(\frac{33}{7},\frac{{\displaystyle 33}}{{\displaystyle 7}}\right)$
Answer
0
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
Riya Verma
Subject: Maths
, asked on 30/1/18
Plz solve qno.12
Answer
1
Riya Verma
Subject: Maths
, asked on 30/1/18
In qno.11 will the answer be in negative as the question ask the rate of area as decreasing?
Answer
1
Vibhav
Subject: Maths
, asked on 29/1/18
Please answer this
Q. The height of a ball at time ' t ' is given by
$s\left(t\right)=96t-16{t}^{2}$
. Find the open interval on which the ball is moving up and moving down.
Answer
1
Dhinesh Vijayan
Subject: Maths
, asked on 29/1/18
Pls solve
Q.3. Find the equations of the tangent and the normal to the curve
${x}^{2}+{y}^{2}=5$
, where the tangent is parallel to the line 2x - y + 1 = 0
Answer
2
Akansha Karvekar
Subject: Maths
, asked on 26/1/18
Solve this:
y
= sin
^{2}
3 . tan
^{3}
2
x
.
Answer
1
Alifa
Subject: Maths
, asked on 21/1/18
the sum of perimeters of an equilateral triangle and a circle is 'k'(constant). Prove that their combined area is minimum when the side of the triangle is 2root3 times the radius of the circle.
Answer
2
Shobhil Shrivastava
Subject: Maths
, asked on 18/1/18
Please explain the highlighted step.
Answer
2
Varnika Dhiman
Subject: Maths
, asked on 17/1/18
Here, we got
x = 0
by shifting all the terms except
x
, and got
x = 2
by shifting all terms except
(2-x)
.
Fine till here.
I want to ask what value we will get if we shift
x
and
(2-x)
both to the RHS, i.e., how we'll solve
${e}^{-2x}=0$
to get value of x ?!
Kindly solve.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 14/1/18
Second order derivative:
Q Eliminate a and b:
xy=
$a{x}^{3}+b$
Answer
0
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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 $\frac{1}{3}$. Then the circumcvented of the triangle ABC is at the point

(A) ( 0, 0)

(B) $\left(\frac{5}{4},0\right)$

(C) $\left(\frac{5}{2},0\right)$

(D) $\left(\frac{5}{3},0\right)$

Q77. Consider the point

A= (3, 4),B= (7, 13). IfPbe a point on the liney=xsuch thatPA+PBis minimum, then coordinates ofPis(1) $\left(\frac{13}{7},\frac{{\displaystyle 13}}{{\displaystyle 7}}\right)$ (2) $\left(\frac{23}{7},\frac{{\displaystyle 23}}{{\displaystyle 7}}\right)$

(3) $\left(\frac{31}{7},\frac{{\displaystyle 31}}{{\displaystyle 7}}\right)$ (4) $\left(\frac{33}{7},\frac{{\displaystyle 33}}{{\displaystyle 7}}\right)$

^{2} = 4x is what ?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.

Q. The height of a ball at time ' t ' is given by $s\left(t\right)=96t-16{t}^{2}$. Find the open interval on which the ball is moving up and moving down.

Q.3. Find the equations of the tangent and the normal to the curve ${x}^{2}+{y}^{2}=5$, where the tangent is parallel to the line 2x - y + 1 = 0

y= sin^{2}3 . tan^{3}2x.Please explain the highlighted step.

x = 0by shifting all the terms exceptx, and gotx = 2by shifting all terms except(2-x).Fine till here.

I want to ask what value we will get if we shift

xand(2-x)both to the RHS, i.e., how we'll solve ${e}^{-2x}=0$ to get value of x ?!Kindly solve.

Q Eliminate a and b:

xy=$a{x}^{3}+b$