Book Recommendation

I am an Indian and a 10th grader and shall start doing Olympiad mathematics as I shall be appearing for RMO next year. I have the following books for preparation:
- An introduction to Diophantine equations (by Titu Andreescu, Dorin Andrica & Ion Cucurezeanu)
- 103 Trigonometry problems (by Titu Andreescu & Zuming Feng)
- Euclidean Geometry in Mathematical Olympiads (by Evan Chen)
- A path to Combinatorics for undergraduates (by Titu Andreescu & Zuming Feng)

How should I start preparing ? In which order? Also, is the first book sufficient for Number theory? What book should I buy for algebra that shall be within my monetary capabilities? Don't suggest me Aops books as I don't have enough money to buy them. I have got these books from my friend.

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First you need to complete Pre-College Mathematics (it is a must for olympiads).

Most Important thing for RMO is to solve previous year papers.

Some good books which I know:

You can Try Coxeter or Challegnig Problems in geometry By Alfred Posamentier for geometry, David Burton for number theory , Zdravko Cvetkovski for inequalities , rest do questions from Brilliant and AoPS.

Vilakshan Gupta - 3 years, 1 month ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$