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Questions asked by maitreyeeroyster
Questions
141
questions
0
answers selected
In spite of being non-polluting, why are there great apprehensions in using nuclear energy for generating electricity ?
asked
May 26, 2016
1
answer
Which ether C6H5OCH2C6H5 when treated with HI produces
asked
May 25, 2016
1
answer
Write the two components of the first artificial recombinant DNA molecule constructed by Cohen and Boyer.
asked
May 20, 2016
1
answer
Why do normal red blood cells become elongated sickle shaped structures in a person suffering from sickle cell anaemia ?
asked
May 20, 2016
0
answers
Why an earthworm is called a detritivore?
asked
May 18, 2016
1
answer
A garden pea plant produced round green seeds. Another of the same species produced wrinkled yellow seeds. Identify the dominant traits.
asked
May 18, 2016
1
answer
why is tubectomy considered a contraceptive method?
asked
May 18, 2016
1
answer
Name an organism where cell division is itself a mode of reproduction.
asked
May 18, 2016
1
answer
Show that the function f : Z → Z defined by f(x) = x2 is neither one to one nor onto.
asked
May 13, 2016
1
answer
Let x = {1,2,3} and y = {7,10,13,18}. Show that the function f : x → y defined by f(x) = 3x+4 is one to one but not onto.
asked
May 13, 2016
1
answer
Show that the height of the cylinder of maximum volume that can be inscribed in a cone of height h is 1/3 h.
asked
May 12, 2016
0
answers
Show that the rectangle of maximum area that can be inscribed in a circle is a square.
asked
May 12, 2016
1
answer
A factor owner purchases two types of machines, A and B for his factory. The requirements and the limitations for the machines are as follows:
asked
May 12, 2016
0
answers
Find the equation of the plane passing through the points (3,4,1) and (0,1,0) and parallel to the line
asked
May 12, 2016
2
answers
Find the equation of the plane passing through the point (I, -1,2) and perpendicular to each of the following planes: 2x +3y - 3z = 2 and 5x – 4y + z = 6
asked
May 12, 2016
1
answer
Solve for x and y: 31x + 29 = 33, 29x + 31y = 27
asked
Apr 29, 2016
1
answer
Solve for x and y: 2x/a + y/b = 2, x/a - y/b = 4
asked
Apr 27, 2016
1
answer
Find the GCD of the following polynomials : 12x4 + 324x; 36x3 + 90x2 – 54x
asked
Apr 27, 2016
1
answer
Find the sum of all three digit whole numbers which are multiples of 7.
asked
Apr 27, 2016
1
answer
Show that the lines are x+3/-3 = y-1/1 = z-5/5; x+1/-1 = y-2/2 = z-5/5 coplanar. Also find the equation of the plane containing the lines.
asked
Apr 26, 2016
1
answer
evaluate: definite integral 4 1 [x-1+x-2+x-4] dx
asked
Apr 26, 2016
1
answer
Two cards are drawn simultaneously (or successively without replacement) from a well shuffled pack of 52 cards. Find the mean and variance of the number of red cards.
asked
Apr 26, 2016
2
answers
Using matrices, solve the following system of linear equations : 3x- 2y + 3z = 8 2x + y- z = 1 4x- 3y + 2z = 4
asked
Apr 26, 2016
1
answer
Show that the height of the cylinder of maximum volume that can be inscribed in a sphere of radius R is . Also find the maximum volume.
asked
Apr 26, 2016
0
answers
Using integration, find the area of the region : {(x, y) : 9x2 + ·y2 36 and 3x.+ y 6}
asked
Apr 26, 2016
0
answers
One kind of cake requires 200 g of flour and 25 g of fat, and another kind of cake requires 100 g of flour and 50 g of fat. Find the maximum number of cakes which can be made from 5 kg of flour and · 1 kg of fat assuming that there is no shortage of the other ingredients used in making the cakes. Formulate the above as a linear programming problem and solve graphically.
asked
Apr 26, 2016
1
answer
The probability that A hits a target is and the probability that B3 .hits it is . If each one of A and B shoots at the target, what is the probability that i. the target is hit? ii exactly one of them hits the target?
asked
Apr 26, 2016
0
answers
Find the particular solution of the differential equation dy/dx + y cot x = 4x cosec x, given that y = 0 when x =
asked
Apr 26, 2016
1
answer
Solve the following differential equation: $(x^3+y^3)dy – x^2y dx = 0.$
asked
Apr 26, 2016
1
answer
Using differentials, find the approximate value of f(2·01), where f(x) = 4x3 + 5x2
asked
Apr 26, 2016
0
answers
Find the angle between the line x+1/2 = 3y+5/9 = 3-z/-6 and the plane 10x + 2y -11z = 3.
asked
Apr 26, 2016
1
answer
solve the following for x: cos-1 (x2-1/x2+1) + tan-1 (2x/x2-1) = 2pie/3
asked
Apr 26, 2016
1
answer
Prove the following: tan-1(1/2) + tan-1 (2/9) = 1/2 cos-1 (3/5)
asked
Apr 26, 2016
0
answers
Using differentials, find the approximate value of f(2·01), where f(x) = 4x3 + 5x2
asked
Apr 26, 2016
0
answers
If A = ( 1 2 4 2), find the value of k if 2A = k A
asked
Apr 26, 2016
1
answer
if (y+2x 5 -x 3) = ( 7 5 -2 3) , find the value of y.
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Apr 26, 2016
0
answers
Find a unit vector in the direction of .
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Apr 26, 2016
0
answers
write the principal valu eof tan-1 [ tan 3/3]
asked
Apr 26, 2016
1
answer
Find a unit vector in the direction of a = 2i -3j + 6k
asked
Apr 23, 2016
1
answer
if y+2x 5 -x 3 = 7 5 -2 3, find the value of y.
asked
Apr 23, 2016
1
answer
If the binary operation x defined on Q, is defined as a x b = 2a + b - ab, for all a, b e Q, find the value of 3 x 4.
asked
Apr 23, 2016
0
answers
Solve the following differential equation: dy/dx + ycotx = 4xcosecx, given that y = 0 x = pie/2
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Apr 23, 2016
0
answers
if x x 1 x = 3 4 1 2, write the positive value of x.
asked
Apr 23, 2016
0
answers
Find the value of k so that the function f is defined by f(x) = kcosx/ 2x if x' 3 if x1
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Apr 23, 2016
0
answers
Prove, using properties of y+k y y y y+k y y y y+k = k2 (3y+k)
asked
Apr 23, 2016
0
answers
Solve the following differential equation: dy/dx + ycotx = 4xcosec x, given that y = 0 when x =
asked
Apr 23, 2016
0
answers
Find the shortest distance between the lines:
asked
Apr 22, 2016
0
answers
Solve the following differential equation: dy/dx + y cot x = 4 x cosec x, given that y = 0 when x =
asked
Apr 22, 2016
0
answers
Using elementary transformations, find the inverse of the matrix (9 2 0 -1 5 1 0 0 1 3) x-y + 2z = 1 2y-3z =1 3x-2y+4z = 2
asked
Apr 22, 2016
0
answers
Find the equation of the plane passing through the point (-1,3,2) and perpendicular to each of the planes: x+2y+3z = 5 and 3x+3y +z = 0
asked
Apr 22, 2016
1
answer
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