मराठी

The general solution of the differential equation dydx=ex+y is ______. - Mathematics

Advertisements
Advertisements

प्रश्न

The general solution of the differential equation `dy/dx = e^(x+y)` is ______.

पर्याय

  • ex + e-y = C

  • ex + ey = C

  • e-x + ey = C

  • e-x + e-y = C

MCQ
रिकाम्या जागा भरा
Advertisements

उत्तर

The general solution of the differential equation `dy/dx = e^(x+y)` is ex + e-y = C.

Explanation:

`dy/dx = e^x + y = e^x * e^y`

⇒ e-y  dy   ex dx

On integrating

`int` e-y  dy = `int` ex dx + C

⇒ -e-y = ex - C

∴ ex + e-y = C

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Differential Equations - Exercise 9.4 [पृष्ठ ३९७]

APPEARS IN

एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
पाठ 9 Differential Equations
Exercise 9.4 | Q 23 | पृष्ठ ३९७

संबंधित प्रश्‍न

For the differential equation, find the general solution:

`dy/dx = (1 - cos x)/(1+cos x)`


For the differential equation, find the general solution:

`dy/dx + y = 1(y != 1)`


For the differential equation, find the general solution:

sec2 x tan y dx + sec2 y tan x dy = 0


For the differential equation, find the general solution:

(ex + e–x) dy – (ex – e–x) dx = 0


For the differential equation, find the general solution:

`x^5  dy/dx = - y^5`


For the differential equation, find the general solution:

`dy/dx = sin^(-1) x`


For the differential equation find a particular solution satisfying the given condition:

`(x^3 + x^2 + x + 1) dy/dx = 2x^2 + x; y = 1` When x = 0


For the differential equation find a particular solution satisfying the given condition:

`cos (dx/dy) = a(a in R); y = 1` when x = 0


For the differential equation `xy(dy)/(dx) = (x + 2)(y + 2)`  find the solution curve passing through the point (1, –1).


At any point (x, y) of a curve, the slope of the tangent is twice the slope of the line segment joining the point of contact to the point (- 4, -3). Find the equation of the curve given that it passes through (-2, 1).


In a culture, the bacteria count is 1,00,000. The number is increased by 10% in 2 hours. In how many hours will the count reach 2,00,000, if the rate of growth of bacteria is proportional to the number present?


Find the particular solution of the differential equation:

`y(1+logx) dx/dy - xlogx = 0`

when y = e2 and x = e


Find the particular solution of the differential equation `dy/dx + 2y tan x = sin x` given that y = 0 when x =  `pi/3`


Solve the equation for x: 

sin-1x + sin-1(1 - x) = cos-1x, x ≠ 0 


Solve the differential equation `"dy"/"dx" = 1 + "x"^2 +  "y"^2  +"x"^2"y"^2`, given that y = 1 when x = 0.


Solve the differential equation:

`dy/dx = 1 +x+ y + xy`


Solve `dy/dx = (x+y+1)/(x+y-1)  when  x = 2/3 and y = 1/3`


Solve

y dx – x dy = −log x dx


Solve

`y log  y dy/dx + x  – log y = 0`


The resale value of a machine decreases over a 10 year period at a rate that depends on the age of the machine. When the machine is x years old, the rate at which its value is changing is ₹ 2200 (x − 10) per year. Express the value of the machine as a function of its age and initial value. If the machine was originally worth ₹1,20,000, how much will it be worth when it is 10 years old?


Solve

`y log y  dx/ dy = log y  – x`


State whether the following statement is True or False:

A differential equation in which the dependent variable, say y, depends only on one independent variable, say x, is called as ordinary differential equation


Find the differential equation of all non-vertical lines in a plane.


Solve the differential equation `(x^2 - 1) "dy"/"dx" + 2xy = 1/(x^2 - 1)`.


Solve: (x + y)(dx – dy) = dx + dy. [Hint: Substitute x + y = z after seperating dx and dy]


Find the equation of the curve passing through the (0, –2) given that at any point (x, y) on the curve the product of the slope of its tangent and y-co-ordinate of the point is equal to the x-co-ordinate of the point.


The solution of the differential equation, `(dy)/(dx)` = (x – y)2, when y (1) = 1, is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×