# Posts by Akash

Total # Posts: 116

**math**

What percent is 250 of 1200

**multivariate calculus**

Q.NO.1: Show that the function z=ln(x^2 + y^2)+2tan^-1(y/x) satisfies Laplace’s equation. (?^2z/?x^2)+(?^2z/?y^2)=0

**calculus**

Q.NO.4: Find the arc length of the graph of r(t). r(t)=(t^2)i +(cost + t sint)j +(sint- t cost)k , 0?t??

**calculus**

Q.NO.3: Show that the function z=tan^-1(2xy/x^2-y^2)satisfies Laplace’s equation; then make the substitution x=r cos?, y= r sin? and show that the resulting function of satisfies the polar form of laplace’s equation (?^2z/?r^2)+(1/r^2)(?^2z/??^2)+(1/r)(?z/?r)=0

**calculus**

Q.N0.2: Show that u(x,y)=ln(x^2 + y^2) and v(x,y)=2tan^-1(y/x) satisfy Cauchy-Riemann equations (?u/?x)=(?v/?y) and (?u/?y)=(-?v/?x)

**calculus**

Q.NO.1: Show that the function z=ln(x^2 + y^2)+2tan^-1(y/x) satisfies Laplace’s equation. (?^2z/?x^2)+(?^2z/?y^2)=0

**discrete math**

Q 8: Count the number of 01-strings with following constraints. (c) The length is 9. Number of 1s is 3 more than number of 0s.

**discrete math**

Q 7: What is the number of `Hello's printed by the pseudo code below? (for i from lo to hi exhaust i between lo and hi inclusive, and is a empty loop when lo is greater than hi) (b) for i from 1 to 10 for j from i to 10 for k from i to j print `Hello'

**discrete math**

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

**discrete math**

Q 3: There are n identical balls and m different bins. Let Bn,m be the total number of way to put n balls in m bins. (a) What are B1,1, B2,1, B1,2, B2,2, B3,2? (b) Express Bn,m in terms of Bk;m-1, for k = 0,….. n.

**discrete math**

Q 8: Count the number of 01-strings with following constraints. (b) The length is 8. Number of 1s is 3 more than number of 0s. (c) The length is 9. Number of 1s is 3 more than number of 0s.

**discrete math**

Q 7: What is the number of `Hello's printed by the pseudo code below? (for i from lo to hi exhaust i between lo and hi inclusive, and is a empty loop when lo is greater than hi) (b) for i from 1 to 10 for j from i to 10 for k from i to j print `Hello'

**discrete math**

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

**discrete math**

Q 3: There are n identical balls and m different bins. Let Bn,m be the total number of way to put n balls in m bins. (a) What are B1,1, B2,1, B1,2, B2,2, B3,2? (b) Express Bn,m in terms of Bk;m-1, for k = 0,….. n.

**discrete math**

Q 8: Count the number of 01-strings with following constraints. (a) The length is 8. Number of 1s is 2 more than number of 0s. (b) The length is 8. Number of 1s is 3 more than number of 0s. (c) The length is 9. Number of 1s is 3 more than number of 0s.

**discrete math**

Q 7: What is the number of `Hello's printed by the pseudo code below? (for i from lo to hi exhaust i between lo and hi inclusive, and is a empty loop when lo is greater than hi) (a) for i from 1 to n for j from 1 to i - 1 for k from 1 to j - 1 print `Hello' (b) for i ...

**discrete math**

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

**discrete math**

Q 3: There are n identical balls and m different bins. Let Bn,m be the total number of way to put n balls in m bins. (a) What are B1,1, B2,1, B1,2, B2,2, B3,2? (b) Express Bn,m in terms of Bk;m-1, for k = 0,….. n.

**discrete math**

Q:You have borrowed $8000 from the bank. Suppose you want to repay a fixed amount of money for each of the following n years (except possibly the last year), and the annual interest rate r does not change in these n years. For example, if r = 10% and you repay $4000 each year...

**discrete math**

36P3 * (36-1 * 35-1 * 34-1) is it correct.

**discrete math**

Q: Count the number of passwords with following constraints. Assuming digits = {0, 1, …..9}, letters = {a, b, ….. y, z} (a) 5 characters which are digits or letters. (b) 4 characters which are digits or letters, with at least 1 digit. (c) 4 characters which are ...

**discrete math**

Q: There are n identical balls and m different bins. Let Bn,m be the total number of way to put n balls in m bins. (a) What are B1,1, B2,1, B1,2, B2,2, B3,2? (b) Express Bn,m in terms of Bk;m-1, for k = 0,….. n.

**discrete math**

Steve, will you please elaborate the answer.

**discrete math**

Q: Consider a digital circuit that reads an n-bit input string and writes a 1bit output. Two circuits are considered different if they have a different output for some input string, otherwise they are considered the same (i.e. two circuits are considered the same if they have ...

**discrete math**

Q: Consider a digital circuit that reads an n-bit input string and writes a 1bit output. Two circuits are considered different if they have a different output for some input string, otherwise they are considered the same (i.e. two circuits are considered the same if they have ...

**discrete math**

Q: Count the number of passwords with following constraints. Assuming digits = {0, 1, …..9}, letters = {a, b, ….. y, z} (a) 5 characters which are digits or letters. (b) 4 characters which are digits or letters, with at least 1 digit. (c) 4 characters which are ...

**discrete math**

There are n identical balls and m different bins. Let Bn,m be the total number of way to put n balls in m bins. (a) What are B1,1, B2,1, B1,2, B2,2, B3,2? (b) Express Bn,m in terms of Bk;m-1, for k = 0,….. n.

**discrete math**

You have borrowed $8000 from the bank. Suppose you want to repay a fixed amount of money for each of the following n years (except possibly the last year), and the annual interest rate r does not change in these n years. For example, if r = 10% and you repay $4000 each year, ...

**calculus**

find the parametric equation of the line that is tangent to the parabola y=x^2 at the point(-2 , 4)

**clculus**

find the parametric equation of the line that is tangent to the parabola y=x^2 at the point(-2 , 4)

**emt**

what is the Integration of x.y.[(x^2 +y^2 +25)^3/2 ] dx.dy from (0<x<1) &(0<y<1) ?

**math**

If a=26 and sun=27. then ant=?

**Physics, Math**

1463.58 ft

**SCIENCE**

I mix 300.0ml of the barium nitrate solution from 1c with 100ml of a 1.50M lithium phosphate solution. The reaction produces solid barium phosphate a. Write a balanced equation for the reaction. b. Which is my limiting reagent? c. How much barium phosphate may be produced in ...

**Physics**

Force=10+15 N =25N

**physics**

a ball bounces to 60% of its original height.what fraction of its mechanical energy is lost in each bouces?where does this energy go?

**Calculus**

Find the first partial derivatives and evaluate each at the given point. Function w = 2x^2y − 6xyz + 10yz^2 Point (2, 5, −3) wx(2, 5, −3) = wy(2, 5, −3) = wz(2, 5, −3) =

**Calculus**

A pharmaceutical corporation has two locations that produce the same over-the-counter medicine. If x1 and x2 are the numbers of units produced at location 1 and location 2, respectively, then the total revenue for the product is given by R = 700x1 + 700x2 − 2x1^2 −...

**Calculus**

Find the area of the unbounded shaded region. Y= 7/ SQRT (7-X)

**Calculus**

A professional athlete signs a four-year contract in which the earnings can be modeled by c = 300,000 + 750,000t, where t represents the year. (a) Find the actual value of the athlete's contract. =7200000 (b) Assuming an annual inflation rate of 4%, what is the present ...

**Calculus**

The marginal cost of a product is modeled by dC/dx =12/Cube root (12x+5) where x is the number of units. When x = 13, C = 160. (a) Find the cost function. (Round your constant term to two decimal places.) C= Ans- 3/2(12x+5)^2/3 +115.61 ???? (b) Find the cost of producing 70 ...

**calculus**

y = x^2 − 9x + 29/x − 5 relative maximum (x, y) = relative minimum (x, y) =

**calculus**

Identify any intercepts, relative extrema, points of inflection, and asymptotes. (If an answer does not exist, enter DNE.) y = x^3 + 3x^2 + 3x + 2 x-intercept (x, y) = y-intercept (x, y) = relative maximum (x, y) = relative minimum (x, y) = point of inflection (x, y) = ...

**calculus**

Identify any intercepts, relative extrema, points of inflection, and asymptotes. y = 4x^2 − 24x + 34 X-intercept ? (x, y) (smaller x-value) (x, y) (larger x-value) relative minimum (x, y)

**math- 165 calculas**

so i got x=9 but this is not correct

**math- 165 calculas**

An open box is to be made from a eighteen-inch by eighteen-inch square piece of material by cutting equal squares from the corners and turning up the sides (see figure). Find the volume of the largest box that can be made. figure ( a box and one side is 18-2x) v= ? in^3

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 5x^2 + 1/ 7x^3 − 2x^2 + 5

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 − 3x^2 + 5x + 1/ x^2 − 5x + 3

**PHYSICS**

Why are cars made with bumpers that can be pushed in during a crash?

**math**

140400

**maths**

6289437

**maths**

1284930

**Physics**

Two forces are applied to a car in an effort to accelerate it, as shown below. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 464 N, is applied at an angle β = 13° to the forward dashed line. (a...

**science**

a ladder is at rest with its upper end against a wall and the lower end on the ground .Is the ladder more likely to slip,when a man stands on it at the bottom or at the top?gove reason.

**Chemistry**

O.9

**mathematics**

A rectangular house with 60*50 feet dimension has a rectangular wall surrounding the garden around the house.the area of garden is same as area of house.so how far is wall from the house?

**Maths**

There is a square garden whose area is 425.5969sq.m.If from every side the length is decreased by 0.03m,then what will be the possible length of new square garden.

**Maths**

I have a three digit number such that the sum of the cubes of each digit number containing the same digits. Find my number

**poetry**

Poem. DayBreak Q.1 Who does the wind address to? Q2. "The night is gone,"What does the. world 'night' refer to ? Q3. What does the poem describe? Q4. "Not yet! In quiet-lie".What is the meaning of this line? Q5. What does the title of the poem ...

**Probability**

2) 0.4096

**S.ST**

Differentiate between physical and human capital.

**maths**

how, kaise aaya...

**maths**

kaise aaya...

**calculus**

can someone please asap

**calculus**

Let x = 1 and Δx = 0.01. Find Δy. (Round your answer to five decimal places.) f(x) = x/x^2 + 5

**math calculus**

0.04938

**math calculus**

The concentration C (in milligrams per milliliter) of a drug in a patient's bloodstream t hours after injection into muscle tissue is modeled by C = 3t/26 + t^3 Use differentials to approximate the change in the concentration when t changes from t = 1 to t = 1.5. (Round ...

**math calculus**

The revenue R for a company selling x units is R = 700x − 0.1^x2. (a) Use differentials to approximate the change in revenue as the sales increase from 2900 units to 3000 units. dR = $ (b) Compare this with the actual change in revenue. ΔR = $

**physics**

three point charges each of magnitude +q are located at the vertices of an equilateral triangle of side L. what magnitude of charge should be placed at the centroid of triangle to keep all the three charges in equilibrium?

**math calculus**

Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3] find absolute maximum (x, y) = ...

**math**

Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3]

**calculus**

Find dy/dx. 7xy^3 − x^2y = 6

**calculus**

Find dy/dx. y^3 = 8x^3 + 4x

**calculus**

Find the slope of the graph of the function at the given point. (If an answer is undefined, enter UNDEFINED.) x^3 + y^3 = 14xy, (7, 7)

**business communication**

Select a company of your choice in a sector that you would like to work in. Imagine that you have to make a brief presentation on this company to business school students. Develop:-a) A general and specific statement of purpose.b) The key idea.c) Your style of delivery.

**Physics**

Light of wavelength 550 nm in vacuum passes through a piece of crown glass of refractive index of 1.52. Find the velocity and frequency of light in crown glass.

**arithmetic**

In an AP the first term is 2 and the sum of the first five terms is one fourth of the sum of the next five terms. Show that the 20th term is -112.

**12th Grade Calculus**

how will you multiply y = ae^3x + be^-2x with dy/dx = 3ae^3x - 2be^-2x

**Calculus 12**

im solving for this log problem. The question is wht i ve asked

**Calculus 12**

Simple query. plz tell me in brief. How will u slove this -3 log 3 + log 2 + 2 log 4 Plz explain

**Class 12th Application of Derivatives**

Find a point on the parabola y = (x-4)^2, where the tangent is parallel to the chord joining (4,0) and (5,1). Solve this question using Lagrange's theorem. Answer is (9/2,1/4)

**Calculus : Derivative**

If tan^-1(x^2-y^2/x^2+y^2) = a, prove that dy/dx = x(1 - tan a)/y(1 + tan a) Please solve!!!

**Calculus : Derivative**

If y = x sin(a+y), prove that dy/dx = sin^2(a+y)/sin(a+y)-ycos(a+y) Please solve it

**Calculus : Derivative**

If xy log(x+y) = 1, prove that dy/dx = -y(x^2y +x+ y)/x(xy^2 + x + y)

**Class 12th Calculus**

If y = e^x cosx, prove that dy/dx sqrt(2) e^x . cos(x+ pie/4)

**Class 12th Calculus**

If y= (x-1)log(x-1)-(x+1)log(x+1), prove that dy/dx = log(x-1/1+x)

**Class 12th : Calculus**

If y = sqrt(x-1)+sqrt(x+1),prove that sqrt(x^2-1)dy/dx=1y/2

**CIVICS**

DEFINE THESE TERMS (I)AP AS THEID (II)CLAUSE (III) PREAMBLE

**Quadratic Equations**

any other easy method

**Quadratic Equations**

Can anybody tell me step wise step how to solve this quadratic equation? x^3-3x^2+4=0 Please tell me step wise step as i haven't solved such type of equations before. Thank You

**Maths: Algebra Matrices Class 12th**

matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0 Find the value of x Don't give me the direct answer. Please tell me how to go about this. Draw in your notebook and then solve

**math**

from the top of a cliff 50 m high the angle of depression of the top and bottom of tower are observed to be 30 and 45 degree resp. find h of tower ?

**calculus**

A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

**11th Grade Physics**

A stone falls from a tower and travels 100m in the last second before it reaches the ground. Find the height of the tower

**11th grade Physics**

My answer please!!!

**11th Grade Physics**

I want the answer wht is this all

**Grade 11th Physics**

then how to do it!!!

**Grade 11th Physics**

A bus starts from rest and accelerates uniformly for 20 seconds to a speed of 18 km/h. It then moves with a uniform velocity and it is finally brought to rest in 100 meteres with a constant retardation. If the total distance travelled is 0.5km. Find the accelration, ...

**Grade 11th Physics**

Sir my teacher solved it!!!

**Grade 11th Maths**

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If AUB=Ø, then prove that A=Ø,B=Ø