Book for complementing differential equations

[Santilopez10]

Hello! Currently I own Differential Equations by H.B Phillips, a really old book, but difficult and does it´s purpose. I have only 1 problem, certain exercises require certain geometrical functional study I suppose, for example:
"find the equation of the curves so that the part of every tangent between the y-axis and the tangent point P(x,y) is divided in 2 equal parts by the x-axis." (sorry if I translated wrong)
To be honest, I hesitated a bit trying to find such a curve, so I checked the answers, and it was a simple quadratic equation, therefore I realized I need to study a bit geometry of functions, so if someone can recommend a book I would thank him a lot.

 

[Dr.D]

The usual understanding is that, before you get to the study of differential equations, you have gone through algebra, trigonometry, geometry, analytical geometry, differential and integral calculus. Without that background, a DE text is likely to be quite difficult.

 

[Santilopez10]

The usual understanding is that, before you get to the study of differential equations, you have gone through algebra, trigonometry, geometry, analytical geometry, differential and integral calculus. Without that background, a DE text is likely to be quite difficult.

the only problem is that I am trying to learn it by my self, so I don´t have anyone who can teach me. I´ve already learned plenty of calculus, algebra, and trigonometry, but no geometric analysis, would you mind recommending a book of the subject?

 

[Dr.D]

I don't have any current recommendations. I studied geometry in high school 60+ years ago. Try Google.

 

[Santilopez10]

I don't have any current recommendations. I studied geometry in high school 60+ years ago. Try Google.

alright, thanks.

 

[taverner]

Looks like you need some help with coordinate geometry.
One nice book is Elements of Coordinate Geometry by S L Loney

 

[Buffu]

Looks like you need some help with coordinate geometry.
One nice book is Elements of Coordinate Geometry by S L Loney

That book is ~100 old and is barely readable.
A modern alternative would be Elementary Euclidean Geometry by C G Gibson.

 

[Wrichik Basu]

A good suggestion would be tutorials from Khan Academy.