5. किसी त्रिभुज ABC में सिद्ध करें कि (b² - c²) cot A + (c² - a²) cot B+ (a² - b²) cot C = 0
6. किसी त्रिभुज ABC में सिद्ध करें कि (b-c)² cos²A/2+ (b + c)² sin² A/2 =a²
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Write true or false:
3.a. Thanjavur is also an example of a temple town.
3. b. RMP means Rural Medical Practitioner
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