Question

find the scalar and vector product of the vector a=(4j+9j-8k) and b=(3i-2j+7k).​

Answer 1

SOLUTION :

$\sf \: a = 4 \hat{i} + 9 \hat{j} - 8 \hat{k}$

$\sf \: b = 3 \hat{i} - 2 \hat{j} + 7 \hat{k}$

Vector Product

$\sf(4 \hat{i} + 9 \hat{j} - 8 \hat{k})(3 \hat{i} - 2 \hat{j} + 7 \hat{k})$

$\boxed{\sf \: A .B = AB \cos \theta}$

$\sf \implies12 \cos 0 \degree - 0 + 0 - 18 \cos0 \degree + 0 + 0 - 56 \cos 0 \degree + 0 + 0$

$\sf \implies - 62$

Answer 2

Answer:

mujh se bat to karlo yaar