Aryabhata, a renowned Indian mathematician and astronomer, is often hailed as the 'Father of Trigonometry' for his groundbreaking work in the field. His contributions include the development of trigonometric tables, formulas, and techniques that laid the foundation for future advancements in trigonometry.

The sine function is a fundamental trigonometric function that calculates the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle. It plays a crucial role in various mathematical and scientific applications.

Aryabhata was the first Indian mathematician to introduce the concepts of 'sine' and 'cosine' functions. He also developed the first trigonometric tables, which were essential for solving various mathematical and astronomical problems.

The cosine function is a trigonometric function that calculates the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle. It is widely used in various mathematical and scientific applications.

Brahmagupta developed the concept of 'half-chord' and 'whole-chord' and used them to derive trigonometric identities. These concepts were crucial in advancing the field of trigonometry and solving complex mathematical problems.

The tangent function is a trigonometric function that calculates the ratio of the length of the opposite side to the length of the adjacent side in a right triangle. It is widely used in various mathematical and scientific applications.

Bhaskara II developed the concept of 'sine-versed' and 'cosine-versed' functions and used them to derive trigonometric identities. These concepts were instrumental in advancing the field of trigonometry and solving complex mathematical problems.

The cosecant function is a trigonometric function that calculates the reciprocal of the sine function. It is widely used in various mathematical and scientific applications.

Varahamihira developed the concept of 'jya' and 'kotijya' functions and used them to derive trigonometric identities. These concepts were crucial in advancing the field of trigonometry and solving complex mathematical problems.

The secant function is a trigonometric function that calculates the reciprocal of the cosine function. It is widely used in various mathematical and scientific applications.

Aryabhata developed the concept of 'trigonometric ratios' and used them to derive trigonometric identities. These concepts were fundamental in advancing the field of trigonometry and solving complex mathematical problems.

The cotangent function is a trigonometric function that calculates the reciprocal of the tangent function. It is widely used in various mathematical and scientific applications.

Aryabhata developed the concept of 'trigonometric tables' and used them to solve various mathematical and astronomical problems. These tables were essential for advancing the field of trigonometry and enabling accurate calculations.

The secant function is a trigonometric function that calculates the ratio of the length of the hypotenuse to the length of the opposite side in a right triangle. It is widely used in various mathematical and scientific applications.

Bhaskara II developed the concept of 'trigonometric identities' and used them to simplify and solve complex trigonometric equations. These identities were crucial in advancing the field of trigonometry and enabling elegant solutions to various mathematical problems.