Learn how to eliminate the parameter given sine and cosine of t

The video tutorial explains the use of Pythagorean and trigonometric identities to solve equations by eliminating the parameter T. It demonstrates how to replace cosine of T with expressions involving X and Y, leading to the transformation of equations into the standard form of a circle. The tutorial concludes by deriving the equation of a circle and identifying the radius.

What happens when you multiply both sides of the equation by 49?

What is the radius of the circle derived from the equation?