Contents
Basic Identities
Second Degree Identities
Simple Equations
Second Degree Equations
Quiz
Trigonometry Main Page
Identities & Equations
Given that y = sin q + 1 and x = 2 cos q , show that x2 + 4(y - 1)2 = 4
Answers
Solve for x for the equation 11 sin x - 9 sin2 x = 6 cos2 x if x lies between 0° and 360°