
- Pneumonia symptoms: A include breathing difficulty, cough, and chest pain. Typhoid causative organism: B is Salmonella typhi.
- Common cold symptoms: C include nasal congestion, sore throat, and cough.
- Ringworm causative organism: D is Trichophyton.
- Ascariasis symptoms: E include internal bleeding, muscular pain, and anemia.
- F: Disease caused by Entamoeba histolytica is Amoebiasis.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?