Category Archives: algebra

Elementary algebra: fractions: IITJEE foundation maths

Expertise in dealing with algebraic fractions is necessary especially for integral calculus, which is of course, a hardcore area of IITJEE mains or advanced maths.

Below is a problem set dealing with fractions; the motivation is to develop super-speed and super-fine accuracy:

A) Find the value of the following: (the answer should be in as simple terms as possible, which means, complete factorization will be required):

1) \frac{1}{6a^{2}+54} + \frac{1}{3a-9} - \frac{a}{3a^{2}-27}

2) \frac{1}{6a-18} - \frac{1}{6a+18} -\frac{1}{a^{2}+9} + \frac{18}{a^{4}+81}

3) \frac{1}{8-8x} - \frac{1}{8+8x} + \frac{x}{4+4x^{2}} - \frac{x}{2+2x^{4}}

4) \frac{x+1}{2x^{3}-4x^{2}} + \frac{x-1}{2x^{3}+4x^{2}} - \frac{1}{x^{2}-4}1

5) \frac{1}{3x^{2}-4xy+y^{2}} + \frac{1}{x^{2}-4xy+3y^{2}} -\frac{3}{3x^{2}-10xy+3y^{2}}

6) \frac{1}{x-1} + \frac{2}{x+1} - \frac{3x-2}{x^{2}-1} - \frac{1}{(x+1)^{2}}

7) \frac{108-52x}{x(3-x)^{2}} - \frac{4}{3-x} - \frac{12}{x} + (\frac{1+x}{3-x})^{2}

8) \frac{(a+b)^{2}}{(x-a)(x+a+b)} - \frac{a+2b+x}{2(x-a)} + \frac{(a+b)x}{x^{2}+bx-a^{2}-ab} + \frac{1}{2}

9) \frac{3(x^{2}+x-2)}{x^{2}-x-2} -\frac{3(x^{2}-x-2)}{x^{2}+x-2} - \frac{8x}{x^{2}-4}

More later,

Nalin Pithwa

References for IITJEE Foundation Mathematics and Pre-RMO (Homi Bhabha Foundation/TIFR)

  1. Algebra for Beginners (with Numerous Examples): Isaac Todhunter (classic text): Amazon India link: 
  2. Algebra for Beginners (including easy graphs): Metric Edition: Hall and Knight Amazon India link:
  3. Elementary Algebra for School: Metric Edition:
  4. Higher Algebra: Hall and Knight: Amazon India link:
  5. Plane Trigonometry: Part I: S L Loney:

The above references are a must. Best time to start is from standard VII or standard VIII.

-Nalin Pithwa.

Binomial Theorem: part 2: algebra for math olympiads or IITJEE maths

Binomial Theorem: Part I: A Primer for mathematical olympiads and IITJEE/RMO

Arithmetic Progressions: A Primer for mathematical olympiads and IITJEE mathematics

a gentle introduction…it reminds us that math is about detecting and discerning patterns…whether in numbers, symbols, shapes/figures, or even logical reasoning…regards, Nalin Pithwa.

Harmonic Progressions: A Primer for IITJEE maths and olympiad mathematics

Permutations and Combinations: A primer only

Simultaneous Quadratic Equations: part III: IITJEE algebra

Simultaneous Quadratic Equations: part II: IITJEE maths

Simultaneous Quadratic Equations: part I: IITJEE algebra or mathematics