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Recent questions tagged q14-b

If the letters of the word ASSASSINATION are arranged at random.Find the probability that two I's and two N's come together.

asked Jul 8, 2014 by sreemathi.v

1 answer

Show that $cot^{-1}7+cos^{-1}8+cot^{-1}18=cot^{-1}3$

asked Mar 21, 2014 by rvidyagovindarajan_1

1 answer

In the following cases,find the distance of each of the given points from the corresponding given plane $(b)\;$Point (3,-2,1);Plane $(2x-y+2z+3=0)$

asked Jun 4, 2013 by sreemathi.v

1 answer

Find the $\perp$ distance of the point (3,-2,1) from the plane $2x-y+2z+3=0$

asked May 22, 2013 by rvidyagovindarajan_1

1 answer

Find the locus of a complex number $z=x+iy$ satisfying the relation $\mid12z+3i\mid\geq \mid 2z+5\mid$.Illustrate the locus in the Argand plane.

asked Apr 22, 2013 by sreemathi.v

0 answers

If $z=x+iy$ and $\mid 2z+1\mid=\mid z-2i\mid$ show that $3(x^2+y^2)+4(x+y)=3.$

asked Apr 19, 2013 by sreemathi.v

0 answers

A company is selling a certain product.The demand function of the product is linear.The company can sell 2000 units when the price is Rs.8 per unit and when the price is Rs.4 per unit,it can sell 3000 units,Determine :

asked Apr 18, 2013 by sreemathi.v

1 answer

A television manufacturer finds that the total cost for the production and marketing of $x$ number of television sets is : $c(x)=300x^2+4200x+13,500.$Each product is sold for Rs.8,400.Determine the break-even points.

asked Apr 17, 2013 by sreemathi.v

2 answers

The fixed cost of a new product is Rs.18,000 and the variable cost is Rs.550 per unit.If the demand function $p(x)=4000-150x$,find break even points.

asked Apr 16, 2013 by sreemathi.v

1 answer

The average cost function associated with producing and marketing $x$ units of an item is given by $AC=2x-11+\large\frac{50}{x}$.Find : (i) The total cost function and marginal cost function. (ii) The range of values of the output $x$ for which AC is increasing.

asked Apr 15, 2013 by sreemathi.v

0 answers

The cost of manufacturing of certain items consists of Rs. 1600 as overheads,Rs. 30 per item as the cost of the material and the labour cost $Rs. \large\frac{x^2}{100}$ for x items produced.How many items must be produced to have a minimum average cost?

asked Apr 15, 2013 by sreemathi.v

0 answers

The average cost function AC for a commodity is given by $AC=x+5+\large\frac{36}{x}$ in terms of output x.Find the :

asked Apr 12, 2013 by sreemathi.v

0 answers

Given that the total cost function for x units of a commodity is : $C(x)=\large \frac{x^3}{3}\normalsize +3x^2-7x+16$

asked Apr 11, 2013 by sreemathi.v

1 answer

If total cost function is given by $C=a+bx+cx^2$,where x is the quantity of output.Show that : $\frac{d}{dx}(AC)=\frac{1}{x}(MC-AC),$where $MC$ is the marginal cost and $AC$ is the average cost.

asked Apr 10, 2013 by sreemathi.v

1 answer

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