A-Level Maths: H7-04 Differential Equations: Examples of Finding Particular Solutions

[yuma]

ur videos have been a lifesaver over quarantine, thanks so so much <3

[faustagumbeleviciute]

Hello, would you mind explaining how you got 1/3 ln(y^3+1) in question 4?

[ray]

I've been watching a lot of your vids, really helpful. Thank You!

[Lapichant]

Why are there no modulus brackets for natural log in question 3?

[finlaysleeman]

Hi, why in question three is it wrong to put ln(y+1)=ln(x+1) +c to the power of e to cancel the ln and get y+1=x+1 + e^c and then insert the co-ordinates after to find the solution? Thanks.

[hs_hs]

If I solve the integral of y^2/(y^3 +1)dx by substitution, I get 1/3ln(3y^3 + 3)? Is this the same as 1/3ln(y^3 +1)?

[jessicacallaghan]

for the first one, why cant you just minus the 0.5x^2. Then you have c = -0.5y^-2 - 0.5x^2. I get an answer of -1 out, why am i not getting the same as you?

[thanushan]

at 4:51 cant u do (y+1)^-1 instead of ln(y+1)?