1. Different kinds of specialized surgical instruments were in common use by AD first century.
2. Transplant of internal organs in the human body had begun by the beginning of AD third century.
3. The concept of the sine of an angle was known in AD fifth century.
4. The concept of cyclic quadrilaterals was known in AD seventh century.
Select the correct answer using the codes given below
Correct Answer: (c) 1, 3 and 4
Solution:The ancient age is notable for the scientific developments. Many surgical instruments were used in 1st century AD, but the transplant of human internal organs was not possible till then. Development in maths is notable in the Gupta period Sine, cosine, inverse sine was known in 5 century AD. These are mentioned in 'Surya Sıddhantha' and 'Aryabhatiya." Brahmagupta described cyclic quadrilateral in 700 AD Thus, statement 1, 3 and 4 are correct.