Subject: Maths, asked on 18/3/18

## In the second step how did we get -4 as power In RHS? Subject: Maths, asked on 18/3/18

## Find the differential eq. .. As the general solution Q.11. Which of the following differential equations has $y={c}_{1}{e}^{x}+{c}_{2}{e}^{-x}$ as the general solution?

Subject: Maths, asked on 18/3/18

## Q If

Subject: Maths, asked on 17/3/18

## No links please Q. iii) Solve : ; given y = 0 when x = 1. Ans: ${y}^{2}=\frac{2}{2}\left({e}^{{x}^{\frac{1}{3}}}-e\right){x}^{2}$

Subject: Maths, asked on 16/3/18

## Solve the following Differential equation  -

Subject: Maths, asked on 16/3/18

## In a college hostel accommodating 1000 students, one of the hostellers came in carrying a flu virus, and the hostel was isolated. If the rate at which the virus spreads is assumed to be proportional to the product of the number N of infected students and the number of non-infected students, and if infected students are 50 after 4 days then show that more than 95% of the hostellers will be infected after 10 days. If Shyam was the first student to be infected what precautions he should have initiated to avoid this situation.

Subject: Maths, asked on 15/3/18

## in  this soln part i didnt get after (((log(1-y)=x+logc)))) . in the next line why there is a minus sign before log(1-y)??? because when logc is bring to the left side it should be -ve but why log(1-y)is -ve?: Now, Integrating both sides, we Get:

Subject: Maths, asked on 15/3/18

## $\sqrt{a+x}\frac{dy}{dx}+xy=0$

Subject: Maths, asked on 15/3/18

## Q. 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?

Subject: Maths, asked on 14/3/18

## Q). Solve: $\frac{dy}{dx}=\frac{2x-3y+4}{3x+4y-5}$

Subject: Maths, asked on 13/3/18

Subject: Maths, asked on 13/3/18

## No links please. Please explain. Subject: Maths, asked on 13/3/18