December 02, 2015 c. De O 2 P E N E R Note: HW solutions are posted Find all values of x with 0 ≤ x < 2π 1. sinx = 0 2. tanx = √3 3. cosx = -1 4. secx = -2 5. cotx = √3 6. sinx = ½ Find all solutions: 3sin2x - 1 = sin2x 5.5 Solving Trig Equations Find all solutions of 4sinx - 2 = 0 1. Isolate the trig function. 2. Think of the unit circle to solve for the variable. 3. If you are finding all solutions, add the period times n to your solution. Solve on the interval [0, 2π) (tan2x - 3)(2cosx + 1) = 0 sin2θ - 2sinθ + 1 = 0 ½sinx = 1 December 02, 2015 secx + tanx = 1 csc2x = -cscx + 2 cos3x - cosx = 0 3sin2x - cos2x=0 sin2x = cosx Mathlab 5.5 Day 1 secxcscx = 2cscx
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