The symbol for pi =pi

a represents teta
asked Oct 18, 2016 in Algebra 1 Answers by anonymous

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

Sine is opposite over hypotenuse by definition. The length of the opposite side gets shorter and shorter as the angle gets smaller. When the angle approaches 90 degrees, the opposite side becomes almost as long as the hypotenuse and at 90 degrees it is the same length making the sine value 1. As the angle goes past 90 degrees, the opposite gets shorter again until at 180 it has zero length so sine is zero again. The opposite drops below the base of the triangle so sine is negative and eventually passes through 270 degrees (sine=-1). Between 270 and 360 the opposite side gets shorter and shorter so that at 360 sine=0. Then the process starts all over again. So every 180 degrees (π radians) the sine=0.

answered Oct 18, 2016 by Rod Top Rated User (416,100 points)
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
77,821 questions
81,416 answers
1,756 comments
60,372 users