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Answers posted by vijayalakshmi.r
Questions
1231
answers
9
best answers
0
votes
A frog is at the bottom of a 16m deep well each day it jumps 3m up but duri
answered
Jun 1, 2018
0+3-1= 2------ day1 2+3-1=4--------day2 4+3-1=6-------day3 6+3-1=8--------day4 8+3-1=10---...
0
votes
Show that the points A(5,3,4); B(4,1,6); C(4,5,1); D(3,3,3) are coplanar
answered
Jun 1, 2018
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0
votes
[■(1&2&-2@-1&3&0@0&-2&1)].
answered
Jun 1, 2018
Incomplete question.
0
votes
If A = [■(cosα&-sinα@sinα&cosα)], then for what value of α is A an i
answered
Jun 1, 2018
cos0 = 1 and sin0 = 0, hence the value of a = 0 degrees
0
votes
Find minimum of 3sec^2x-4secx+1
answered
Jun 1, 2018
The question seems to be incomplete. Can you give the correct question?
0
votes
Find the equation of normal to the curve x2=4y which passes through the poi
answered
May 31, 2018
4y = x^2 y = x^2/4 dy/dx = 2x/4 = x/2 dy/dx(1,2) = 1/2 slope of the normal = -1/1/2 = -2 Theref...
0
votes
Q1: Write all proper subsets of A = { a, b, c }.
answered
May 31, 2018
{null set}, {a},{b},{c},{a,b},{a,c},{bc},{a,b,c}
0
votes
Let A = { 2, 4, 6, 8 } Define a relation R on A as (a,b) R iff
answered
May 30, 2018
{(2,4),(2,6),(2,8),(4,8)}
0
votes
35 masons can build a house in 16 days. How many days will 28 masons to bui
answered
May 30, 2018
35 masons can work in 16 days, therefore 28 masons will take [35/28] x 16 = 20 days
0
votes
Two variables gave the following data
answered
May 30, 2018
Incomplete question.
0
votes
If three lines passes through a same point then lines are?
answered
May 30, 2018
The lines are said to be concurrent.
0
votes
tan^- √1-sinx/1+sinx dx
answered
May 30, 2018
Question seems to be incomplete. Can you give the complete question? If this is the question follow...
0
votes
verify euler's theorem for the functionv(x,y)=(x^2+y^2)/(x^2-y^2)
answered
May 24, 2018
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0
votes
Without exapanding determinant prove x-3 x-4 x-a x-2 x-3 x-b = 0 ,w
answered
May 24, 2018
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0
votes
THE MIDDLE TERM OF THE EXPANSION(10/X +X/10) POWER 10
answered
May 24, 2018
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0
votes
Find the equation of the circle passing through (2,1),(5,5)and(-6,7)
answered
May 24, 2018
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0
votes
Prove that the function f:R-R is neither one one nor onto
answered
May 24, 2018
The question seems to be incomplete, can u give the complete question?
0
votes
Prove that the function f:R-R defined by f(X)= tanx ,x€ R is onto through
answered
May 24, 2018
The value of tanx in the first and third quadrant are positive, hence it is not one to one F...
0
votes
In how many ways the letter of word ASSASSINATION can be arranged so that t
answered
May 24, 2018
https://clay6.com/qa/102001/in-how-many-ways-does-the-word-assassination-arranged-such-that-it-word-...
0
votes
The number of ways in which a team of 11 players can be selected from 22 players including 2 of them C&VC
answered
May 24, 2018
No: of ways = 22C13
0
votes
A matrix denotes a number, state true or false With explanation
answered
May 24, 2018
Matrix is an ordered rectangular array of numbers. Hence itis false
0
votes
If A and B are matrices of same order then (AB transpose - BA transpose ) i
answered
May 24, 2018
Follow the link below: https://clay6.com/qa/2942/if-a-b-are-symmetric-matrices-of-the-same-order-th...
0
votes
For any two matrices A and B we have (a) AB=BA (B) AB not equal t
answered
May 24, 2018
For any two matrices A and B, AB is not equal to BA
0
votes
A bag contains 10 white and 3 black balls.Balls are drawn one by one withou
answered
May 23, 2018
The required event is we drawn 2 black balls and 3 white balls in the first 5 draws and the la...
0
votes
orm the differential equation of the family of parabolas having vertex at o
answered
May 23, 2018
Equation of the parabola is y^2 = 4ax On differentiating w.r.t x we get, 2yy' = 4a or a = yy'/2 ...
0
votes
Find the inverse of the matrix [2 - 3 3 2 2 3 3 - 2 2]
answered
May 22, 2018
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0
votes
The ends of a triange are (4,6),(2,-2)and (0,2). The co-ordinate of its cen
answered
May 22, 2018
coordinates of centroid is (4+2+0)/3,(6-2+2)/3 = (2,2)
0
votes
Find the sum 5+55+555+5555........to n terms
answered
May 22, 2018
https://clay6.com/qa/35679/find-the-sum-of-the-series-5-55-555-upto-n-terms- follow the above link ...
0
votes
Find the intervals in which the functions f(x)=sin4x+cos4x,0≤x≤π2 is strictly increasing or decreasing.
answered
May 22, 2018
f(x) = sin4x + cos4x f'(x) = 4cos4x - 4sin4x to find the increasing or decreasing values f'(x) = 0...
0
votes
If A and B are skew symmetric matrices then AB is
answered
May 22, 2018
AB is symmmetric if and only if AB = BA
0
votes
If the ratio of a to b is 2:3 , the ratio of b to d is 4:7 and the ratio of
answered
May 17, 2018
a/b = 2/3 and b/d = 4/7 therefore a/d = a/b x b/d = 2/3 x 4/7 = 8/21 a/d x d/c = 8/21 x 3/1 = 8/7 ...
0
votes
Equation of a line which cuts equal intercepts on both axes and passed thro
answered
May 17, 2018
x/a + y/b = 1 Since a = b, x/a +y/a =1 This line passes throught the point (2,3) 2/a + 3/a = 1, ...
0
votes
Find the least number that should be subtracted from 8656700 so that the r
answered
May 17, 2018
8656700 when divided by 634 leaves a remainder 64 8656700 - 64 = 8656636 which is exactly divisible...
0
votes
Area of rectangle is same as area of square. The length of rectangle is 54m
answered
May 17, 2018
l x b = a^2 54 x b = 27 x 27, this implies b= 27x27/54 = 13.5m Hence the perimeter of the rectangl...
0
votes
The maximum and minimum values of the function y=x³-3x²+6
answered
May 17, 2018
y= x^3-3x^2+6 dy/dx = 3x^2 - 6x d^2y/dx^2 = 6x - 6 To find the maximum and minimum values, put dy...
0
votes
If 1/9!+1/10!=x/11!;find x.
answered
May 17, 2018
1/9! + 1/10! = x/11! (10+1)/10! = x/11! 11!. 11 = x.10! x = 11x11 = 121
0
votes
6x – 3y + 10 = 0 2x + y + 9 = 0
answered
May 17, 2018
https://clay6.com/qa/106672/6x-3y-10-0-2x-y-9-0 follow the above link for the answer.
0
votes
Q.Solve the Parallel equations. 6x-3y+10=0 2x+y+9=0
answered
May 17, 2018
The lines are not parallel, because a1/a2 is not equal to b1/b2. hence it is has an unique solution....
0
votes
Two sides of a triangle are given by the roots of the equation x2−5x+6=0
answered
May 16, 2018
....Hence the perimeter = 3+2+sq rt 7 = 5+sqrt7..........................
0
votes
Solve the equation ; (√3 − 1) cos x + (√3 + 1) sin x = 2.
answered
May 16, 2018
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0
votes
let ABC be a variable triangle with A(1,2) and B and C lie on a variable li
answered
May 15, 2018
The line which is perpendicular to the varable line y = x+c is x+y +k = 0 Since it passes through t...
0
votes
42 is 7 x a particular number what is 11x that number?
answered
May 15, 2018
42 = 7 x 6 11 x 6 = 66
0
votes
~p^q equivalent to p-q q-p ~p-q ~q-p
answered
May 15, 2018
D is the correct option.
0
votes
Given that LCM ( 26 , 169 ) = 338 . Find HCF
answered
May 14, 2018
LCM x HCF = Product of two numbers 338 x HCF = 26 x 169 Therefore HCF = 26 x 169/338 = 13
0
votes
Two then find the value of X power to plus one by X
answered
May 14, 2018
Can u give the correct question?
0
votes
differentiate y = f(x^3) and f^-1(x) = e^8x then find dy/dx
answered
May 13, 2018
y = f(x^3) and f^-1(x^3) = e^8x this implies x^3 = f(e^8x) or x = f(e^2x) y = e^2x dy/dx = 2e^2x...
0
votes
12p+1 is a cube p is positive number
answered
May 13, 2018
Can you give the complete question?
0
votes
Using the property of determinants and without expanding evaluate the deter
answered
May 13, 2018
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0
votes
What number should be added to each of the numbers 3,5,13,19so that resulti
answered
May 12, 2018
[3+x]/[5+x] = [13+x]/[19+x] [3+x][19+x] = [[13+x][5+x] 57 + 22x + x^2 = 65 + 18x + x^2 4x = 8 x ...
0
votes
Find value of tan^2 (sec^-1 2)+cot^2 (cosec^-1 3)
answered
May 12, 2018
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