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Answers posted by ranjani.hogwarts
Questions
11019
answers
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If x2+x+1 is a factor of the polynomial 3x3+8x2+8x+3+5k,then the value of k
answered
Jun 5, 2017
Divide 3x³+8x²+8x+3+5k and x²+x+1 with divisor 3x³+5m We will get reminder -10x
0
votes
In a uniform electric field equipotential surfaces must be
answered
Jun 5, 2017
In a uniform electric field equipotential surfaces must be constant. The force is given by F&n...
0
votes
find the value of a for which the function f(x)=x2-2ax+6,x>0 is strictly in
answered
Jun 3, 2017
f(x)=x2-2ax+6 f'(x)=2x-2a=2(x-a) The function is strictly increasing as far as f'(x) is positi...
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votes
the total revenue in rupees received from sale of x units of a product is g
answered
Jun 3, 2017
Please refer link https://clay6.com/qa/2485/the-total-revenue-received-from-the-sale-of-x-units-of...
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votes
The total revenue received from the sale of x units of a product is given by $ R(x) = 13x^2 + 26x + 15 $ Find the marginal revenue when x = 7.
answered
Jun 3, 2017
Marginal revenue is the rate of change of total revenue w.r.t the number of units sold. Marginal...
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votes
find the maximum and minimum values of function f(x)=-|x-1|+7inverse a is a
answered
Jun 3, 2017
We know that |x|=x x≥0 =-x x≤0 g(X)= {-(x-1)+7
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votes
How many rectangles can be drawn with the perimeter 38cm
answered
Jun 3, 2017
Perimeter = 38 ⇒ 2 ( l + w ) = 38 ⇒ l + w = 19 Since length and width are positive intege
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votes
find the maximum and minimum values of function f(x)=sin 2x+5
answered
Jun 3, 2017
Please refer the below link https://clay6.com/qa/79163/find-the-maximum-values-of-function-f-x-sin-...
0
votes
find the maximum values of function f(x)=sin 2x+5
answered
Jun 3, 2017
f(x)=sin 2x+5 We know that, -1≤sinӨ≤1 -1≤sin2x≤1 Adding 5 on both sides, -1+5≤sin2x+5≤1
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votes
Find the value of tan60
answered
Jun 3, 2017
tan 60°=sin 60°/cos 60°=1. Consider an right angled traingle. By Pythogars theorem , h²+a²/4=a²
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votes
Find the diagonal of a quadrilateral whose area is 495cm2 whose offsets are
answered
Jun 3, 2017
Area of Quadilateral=1/2 *diagnol*(sum of offsets) Therefore, 495=1/2*d*(19+11) 495*2=30d 495/15...
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votes
find the deravitave of sec(2x+3)
answered
Jun 2, 2017
Let s=sec(2x+3) Put u=2x+3 Now, s= secu Derivative of s is, ds/dt=sec(2x+3)tan(2x+3)d(2x+3)/dt ...
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What is the smallest and greatest natural number?
answered
Jun 2, 2017
The numbers 1,2,3,… are called natural numbers or counting numbers. The whole nos. consist
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what is the interval on which the function f(x)=logx x,x is an element (0,
answered
Jun 2, 2017
y=logx/x Ý=(x/x-logx)/x² where Ý=0 Hence , 0=1-logx logx=1 x=10 dividing function in (-infini
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votes
What are the smallest and the greatest whole numbers?
answered
Jun 2, 2017
There are Counting numbers,Whole numbers and Natural numbers. When we add 0 to the set of counti...
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votes
describe photosynthesis
answered
Jun 2, 2017
Photosynthesis is the process by which plants use the energy of light to produce carbohy...
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votes
Find the mean and standard deviation of the following (2n+1) observations:
answered
Jun 2, 2017
The number of terms of given A.P is (2n+1), Mean, x¯=a+a+2nd/2=a+nd xᵣ=a+rd,where r=0,1,......
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votes
What is the work done in moving a test charge q through a distance of1 cm a
answered
Jun 2, 2017
NO work is done in moving a test charge along equatorial line as, W=qV Where in V=0 for an equipo...
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votes
Derive Expression for torque experienced by electric dipole kept in uniform
answered
Jun 2, 2017
Consider a dipole with charges +q and –q forming a dipole since they are a distance d away from each
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