$a$ and $b$ are unit vectors with angle $6 0^{\circ}$ between them. The value of $(a + 2 b) \times (2 a - b)$ is

Practise more Vectors.

Free questions with an explanation for every one, and full timed JEE Main mock tests.

All Vectors questions Take a mock test

More Vectors questions

What is the dot product of $a = 4 \hat{i} + 4 \hat{j} + 0 \hat{k}$ and $b = 2 \hat{i} + 3 \hat{j} - 1 \hat{k}$ ?
What is the dot product of $a = - 3 \hat{i} + 6 \hat{j} + 0 \hat{k}$ and $b = 1 \hat{i} - 1 \hat{j} + 3 \hat{k}$ ?
What is the dot product of $a = 3 \hat{i} + 0 \hat{j} - 1 \hat{k}$ and $b = 3 \hat{i} + 3 \hat{j} + 4 \hat{k}$ ?
What is the dot product of $a = 3 \hat{i} + 0 \hat{j} + 6 \hat{k}$ and $b = - 1 \hat{i} - 1 \hat{j} + 3 \hat{k}$ ?
What is the dot product of $a = 1 \hat{i} + 2 \hat{j} - 1 \hat{k}$ and $b = 6 \hat{i} + 3 \hat{j} + 4 \hat{k}$ ?
What is the dot product of $a = - 4 \hat{i} + 4 \hat{j} + 6 \hat{k}$ and $b = - 2 \hat{i} - 1 \hat{j} + 1 \hat{k}$ ?

vec a and vec b are unit vectors with… | JEE Main Vectors