solve for the angle theta, between 0 an 2pi

sin² theta = cos² theta
asked Aug 29, 2015 in Trigonometry 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

Divide both sides by cos^2(theta): tan^2(theta)=1, so tan(theta)=+1. Theta=(pi)/4 (45 degrees), 3(pi)/4 (135°), 5(pi)/4 (225°), 7(pi)/4 (315°). These values are in consecutive quadrants where the tangent alternates between plus and minus 1. (QI, QIII are +1; QII, QIV are -1).

answered Aug 29, 2015 by Rod Top Rated User (493,620 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!
80,081 questions
83,894 answers
2,052 comments
66,820 users