Mistake Master
Mistake Master · AP Precalculus · Unit 3 · Step-Through Animation
Finding Every Solution, Not Just the First
You'll learnto collect every solution of a trig equation, not just the one the calculator returns.
A wave meets your target height twice every turn, and then does it again, forever. The calculator hands back one angle and stops. Symmetry finds the partner, periodicity makes the family, and one careless division quietly buries a solution that was there all along. Twelve short steps; press Next for each one.
one angle from the inverse · the rest from symmetry and period
Before you start
What you're looking at
A sine wave with the flat line y = 1/2 laid across it.
The question
The calculator hands back one angle, so where are all the others?