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Answers posted by vijayalakshmi.r
Questions
1231
answers
9
best answers
0
votes
e*x<=1+x The set of all points
answered
May 11, 2018
The question is incomplete
0
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The points z1=0,z2= a-i and z3=1-bi form an equilateral triangle then ,what
answered
May 11, 2018
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A and B are two taps which can fill a tank individually in 10 minutes and 2
answered
May 11, 2018
1/10 + 1/20 - 1/40 = 4+2-1/40 = 5/40 1/8 Hence the tank will be filled in 8 minutes.
0
votes
the sum of all percentage frequencies of a frequency distribution
answered
May 9, 2018
the sum of all percentage frequencies of a frequency distribution are always equal. ...
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Show which one is pythagorian triplet: a ) 235 b) 579
answered
May 9, 2018
2^2 + 3^2 is not equal to 5^2, hence it is not a Pythagorean triplet 5^2 + 7^2 is not equal to 9^2,...
0
votes
7/-8 expressed as a rational number with denominator 24
answered
May 9, 2018
https://clay6.com/qa/77796/express-7-8-as-a-rational-number-with-the-following-denominator-16-24-3 ...
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votes
A and B start walking in opposite directions. A covers 3 km and B covers 4
answered
May 8, 2018
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If the nth term of gp series 3,√3,1,....... is ,(1/243) then n is equal t
answered
May 8, 2018
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From the greatest 7 -digit number (pakistani system) subtract the smallest
answered
May 8, 2018
The greatest 7 digit number is 9999999 and smallest 6 digit number is 100000 Os subtracting these t...
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Show that the differential equation of the family of circles having their c
answered
May 7, 2018
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Form the differential equation of all conics, whose axes coincide with the
answered
May 7, 2018
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The area of triangle formed by (a,b+c) (b,c+a)and (c, a+b) is
answered
May 7, 2018
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Find the differential equations, whose primitives are y =Asec x +B tan x
answered
May 7, 2018
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0
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the probablity that a student passes mathematics is 33/60 and the probabili
answered
May 7, 2018
Given P(M) = 33/60 = 11/20, P(M)' = 1 - 11/20 = 9/20 P(P) = 39/60 = 13/60, P(P)' = 1 - 13/20 = 7/20...
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write two branches of cos invers other than principal branch
answered
May 7, 2018
[2 pi, 3pi] are two branches other than the principal branch.
0
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if A,B,C are matrices of order n*n then (ABC)'= ?
answered
May 7, 2018
The order of (ABC)' = n*n
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(x-2) (x-3) >0 Solve this inequality
answered
May 7, 2018
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Find the least no. Which must be added to 8902 so that the sum becomes a pe
answered
May 7, 2018
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Probability of guessing correctly atleast 7 out of 10 answers in a “True
answered
May 7, 2018
$P(X \geq 7) = 10C_7 (\frac{1}{2})^7 (\frac{1}{2})^3 + 10C_8 (\frac{1}{2})^8 (\frac{1}{2})^2 + 10C_...
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votes
Show that the differential equation of all parabolas, having their axes par
answered
May 7, 2018
https://clay6.com/qa/99601/show-that-the-differential-equation-that-represents-all-parabolas-having-...
0
votes
Find the equation of line which meet on x-axis 5/3 and on y-axis -4/5
answered
May 1, 2018
Hence the x intercept is a = 5/3 and the y intercept b = -4/5 Hence the equation of the line is x/(...
0
votes
the length of a diagonal of a square field is 220m. find the length of a si
answered
Apr 24, 2018
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0
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Let f(x + y) = f(x) f(y) for all x and y. If f(0) = 1, f(3) = 3 and f (0) 1
answered
Apr 24, 2018
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votes
Why should a unique point of intersection have equal roots (point of inters
answered
Apr 24, 2018
If ax^2+2hxy+by^2 represent a pair of straight lines, this represents a quadratic equation. Here if ...
0
votes
A team of 11 is to be selected from 7 batsman and 6 bowlers available.The t
answered
Apr 24, 2018
No : of bowlers = 6C5 = 6 No: of batsman = 7C6 (11-5=6, out of 7 players 6 have to be selected) 7C...
0
votes
The angles of a triangle are in A.P and the least angle is 40° . The great
answered
Apr 24, 2018
Let a be the least angle = 40 deg 40+c/2 = b or 2b - c = 40---------(1) 40 + b + c = 180 or b+c = ...
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votes
Find the equation of the sphere through the circle x²+y²+z²=9;2x+3y+4z=5
answered
Apr 23, 2018
I guess there is some error in the question. Can you give the correct question?
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votes
We reject null hypothesis when alternete hypothesis is false, what is your
answered
Apr 23, 2018
then it includes the outcomes which are not covered by the null hypothesis.
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The probablitiy of drawing an ace,a king,and a queen in this order from a p
answered
Apr 23, 2018
Probability of drawing an Ace = 4/52 = 1/13 Probabaility of drawing a King = 4/51 Probability of d...
0
votes
In uniform distribution as a sample size increase,shape of the distribution
answered
Apr 23, 2018
As the sample size increases, the distribution approaches normality.
0
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Find the radian measure corresponding to 240 degree
answered
Apr 20, 2018
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Let a,b,c be three real numbers. Then the following system of equations in
answered
Apr 19, 2018
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the gradient of radical axis of the circle x^2+y^2 -3x -4y+5=0 and 3x^2+3y^
answered
Apr 19, 2018
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What is the maximum number of different possible non zero entries in a skew
answered
Apr 19, 2018
The maximum number of different possible non zero entries in a skew symmetric matrix of order n...
0
votes
if A,B,C are the angles then find the value of ∣∣∣∣a^2bsinAccosAbs
answered
Apr 19, 2018
Can you give a clear question?
0
votes
A vehicleven moving with a speed of 18 km/have covers _____ m in 1 second
answered
Apr 19, 2018
18km/hr = 18 x 5/18 m/s = 5m/s Hence it can cover 5m in one second
0
votes
Find the coefficient of mean deviation about mean from the following data 5
answered
Apr 19, 2018
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What is the variance of first fifty natural numbers?
answered
Apr 19, 2018
https://clay6.com/qa/101196/find-mean-variance-and-standard-deviation-of-first-m-natural-numbers- F...
0
votes
Show that the locus of the foot of the perpendicular from origin to the pla
answered
Apr 19, 2018
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Rolle’s Theorem for f(x) = x(x-3)e(-x⁄2) is applicable in the interval
answered
Apr 19, 2018
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0
votes
intregrating factor of dy/dx+y=1+y/x
answered
Apr 19, 2018
P = 1-1/x onintegrating we get 1/x^2 Hence the integrating factor is e^1/x^2 or e^-x^2
0
votes
Find the equation of the curve if it passes through (2,5) and the slope of
answered
Apr 19, 2018
Given dy/dx = 1/2y that is 2y dy = dx On integrating we get, 2y^2/2 = x+c or y^2 = x+c Since it ...
0
votes
How to find equations of plane passing through two points and parallel to X
answered
Apr 19, 2018
The vector parallel to x axis is (x1,0,0) The vector passing through two points AB is (a2-a1),(b2-b...
0
votes
how many words can be made from the letters of the word 'assassination' in
answered
Apr 18, 2018
https://clay6.com/qa/39884/in-how-many-ways-can-the-letters-of-the-word-assassination-be-arranged-so...
0
votes
Sum of mean and variance is 42 and product is 360. Find distribution
answered
Apr 18, 2018
np +npq = 42 and np x npq = 360 np + np(1-p) = 42 np(1 + 1-p) = 42 np(2-p) =42, this implies np =...
0
votes
if x={123456789} A={x€N:30
answered
Apr 18, 2018
The question is incomplete
0
votes
if n(A)=4 and n(B)=7 then maximum and minimum value of n (AUB) are respecti
answered
Apr 18, 2018
n(Aunion B) will have maximum value when n(A intersection B) is 0, that is the maximum value = 11.
0
votes
1+(1+1)+(1+1+1)+....+(1+1+1+....n-1 times)=....? (A) n(n+1)/2 (B) (n-1)n/2
answered
Apr 18, 2018
Correct option B . n(n-1)/2
0
votes
1-3i/1+2i represent in polar form
answered
Apr 17, 2018
1-3i/1+2i x 1-2i/1-2i = (1-3i)(1-2i)/1+2 (1-5i-6)/3 = -5 - 5i/3 -5(1+i)/3 = -5/3 [ 1+i] r = sqrt...
0
votes
Show that the height of a cylinder of maximum volume that can be inscribed
answered
Apr 17, 2018
https://clay6.com/qa/699/show-that-the-height-of-the-cylinder-of-maximum-volume-that-can-be-inscribe...
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