Sin theta=a/b , find Cos theta
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
a²/b² + cos² theta = 1
cos² theta = 1 - a²/b²
cos ² theta = b²-a²/b²
cos theta = √(a+b)(a-b)
b
pls mark as brainliest