Question:medium

The coefficient of \(x^3\) in the expansion of
\[ \left(x - \frac{1}{x}\right)^7 \]
is:

Show Hint

Match the power of x to find the required term.

Updated On: Mar 23, 2026

14
21
28
35

Show Solution

The Correct Option is B

Solution and Explanation

Was this answer helpful?

0

Top Questions on sequences

10, 30, 68, 130, ___ ,350
find the missing number?
- JEE Main - 2024
- Mathematics
- sequences
View Solution
The sum\(\displaystyle\sum_{n=1}^{\infty} \frac{2 n^2+3 n+4}{(2 n) !}\) is equal to:
- JEE Main - 2023
- Mathematics
- sequences
View Solution
Let $a_1=8, a_2, a_3, \ldots, a_n$ be an AP If the sum of its first four terms is $50$ and the sum of its last four terms is $170$ , then the product of its middle two terms is______
- JEE Main - 2023
- Mathematics
- sequences
View Solution
The statement $(p \wedge(\sim q)) \Rightarrow(p \Rightarrow(\sim q))$ is
- JEE Main - 2023
- Mathematics
- sequences
View Solution
Want to practice more? Try solving extra ecology questions todayView All Questions

Questions Asked in BITSAT exam

What is the dot product of the vectors \( \mathbf{a} = (2, 3, 1) \) and \( \mathbf{b} = (1, -1, 4) \)?

BITSAT - 2025
Vector Algebra

In a mixture of gases, the average number of degrees of freedom per molecule is 6. If the rms speed of the molecule is \(c\), what is the velocity of sound in the gas?

BITSAT - 2025
kinetic theory

A ball is thrown vertically upward with a speed of 49 m/s. How long will it take to return to the thrower’s hand?

BITSAT - 2025
Kinematics

Two identical bodies of mass 1 kg each are moving towards each other with velocities of 5 m/s and 3 m/s, respectively. They collide elastically. What will be the velocity of the body initially moving at 5 m/s after the collision?

BITSAT - 2025
Mechanics