# JEE - Mathematics Free Doubts and Solutions

### IIT JEE - Main - Mathematics

## Solve the question in photo showing each step clearly

**Vidushi412**25th April 2019, 7:10 PM

### IIT JEE - Main - Mathematics

## Each of the distinct numbers A and B exceeds its reciprocal by Unity. Find the value of a + b

**tusharbailwal8**24th April 2019, 5:28 PM

### IIT JEE - Main - Mathematics

## f(x) = 0 is a polynomial whose coefficients are all +-1 (plus minus 1) and whose roots are all real then the degree of f(x) can be a) 1. b)2. c)3. d)4. (Please provide a detailed solution , as we can directly linear and quadratic is possible but how can we prove that 3rd degree or 4th degree polynomial will/will not have all roots real?)

**kunalgaurav39**23rd April 2019, 10:17 PM

### IIT JEE - Main - Mathematics

## If a=i+2j+2k and 3i+6j+2k,then the vector in the direction of a and having magnitude |b|

**g_archanasharma**15th April 2019, 6:16 PM

### IIT JEE - Main - Mathematics

## If P,Q,R are three points with respective position vectors i+j,i-j and ai+bj+ck.The points P,Q,R are collinear,if

**g_archanasharma**15th April 2019, 5:59 PM

### IIT JEE - Main - Mathematics

## D,E and F are the midpoints of sides BC,CA and AB respetiely of triangle ABC and G is the centroid of the triangle,then GD+GE+GF=

**g_archanasharma**15th April 2019, 5:51 PM

### IIT JEE - Main - Mathematics

## Q) A G.P. consists of an even number of terms. If the sum of all the terms is 5 times the sum of the terms occupying odd places then find the common ratio.

**Anish**14th April 2019, 3:53 PM

### IIT JEE - Main - Mathematics

## Q) n arithmetic means are inserted between x and 2y and then between 2x and y. If the rth means in each case be equal , then find the ratio x/y.

**Anish**14th April 2019, 2:49 AM

### IIT JEE - Main - Mathematics

## If a function f:[2,infinity)->B defined by f(x)=x^2-4x+5 is a bijection,then B?

**g_archanasharma**13th April 2019, 9:31 PM

### IIT JEE - Main - Mathematics

## Please solve the question fastly

**veenitkumar4**12th April 2019, 11:33 PM

### JEE Plances - JEE (Main) - Mathematics

## Detailed solution for this.

**g_archanasharma**16th December 2018, 6:20 PM

### JEE Plances - JEE (Main) - Mathematics

## Detailed solution for this.

**g_archanasharma**16th December 2018, 6:19 PM

### JEE Plances - JEE (Main) - Mathematics

## Detailed solution for this.

**g_archanasharma**16th December 2018, 6:18 PM

### JEE Plances - JEE (Main) - Mathematics

## Detailed solution for this.

**g_archanasharma**16th December 2018, 6:11 PM

### JEE Plances - JEE (Main) - Mathematics

## Detailed solution for this.

**g_archanasharma**16th December 2018, 6:09 PM

### JEE Plances - JEE (Main) - Mathematics

## Sir pls solve this question.

**rsudipto**15th December 2018, 6:13 PM

### JEE Plances - JEE (Main) - Mathematics

## Sir in this question how is the inverse fn derived. Pls explain in details.

**rsudipto**15th December 2018, 8:55 AM

### JEE Plances - JEE (Main) - Mathematics

## Sir pls solve this question.

**rsudipto**14th December 2018, 9:52 AM

### JEE Plances - JEE (Main) - Mathematics

## Sir pls solve this question.

**rsudipto**14th December 2018, 9:51 AM

### JEE Plances - JEE (Main) - Mathematics

## Sir pls solve this question.

**rsudipto**13th December 2018, 10:09 AM

## Browse free questions and answers by Chapters

- 1 Sequences and Series
- 2 Mathematical Reasoning
- 3 Differential Equations
- 4 Three Dimensional Geometry
- 5 Complex Numbers and Quadratic Equations
- 6 Permutations and Combinations
- 7 Matrices and Determinants
- 8 Trigonometry
- 9 Integral Calculus
- 10 Sets, Relations and Functions
- 11 Limit, Continuity and Differentiability
- 12 Statistics and Probability
- 13 Co-ordinate Geometry
- 14 Mathematical Induction
- 15 Binomial Theorem and its Simple Applications