hatk times hatj + hatj times hatk - এর মান - 

Explanation:

Another Explanation (5): \( \hat{k} \times \hat{j} + \hat{j} \times \hat{k} \) এর মান নির্ণয়: আমরা জানি, * \( \hat{i} \times \hat{j} = \hat{k} \) * \( \hat{j} \times \hat{k} = \hat{i} \) * \( \hat{k} \times \hat{i} = \hat{j} \) এবং \( \hat{j} \times \hat{i} = -\hat{k} \), \( \hat{k} \times \hat{j} = -\hat{i} \), \( \hat{i} \times \hat{k} = -\hat{j} \) সুতরাং, \( \hat{k} \times \hat{j} = -\hat{i} \) \( \hat{j} \times \hat{k} = \hat{i} \) অতএব, \( \hat{k} \times \hat{j} + \hat{j} \times \hat{k} = -\hat{i} + \hat{i} = \vec{0} \) সুতরাং, উত্তর: \( \vec{0} \) 🥳