Match each identity to its short form

Exercise and reference answers

Matching pairs

1. Left

   sin²θ + cos²θ

   Right

   1

2. Left

   1 + tan²θ

   Right

   sec²θ

3. Left

   1 + cot²θ

   Right

   cosec²θ

Instructions

Tap a trigonometric expression, then tap the simpler form that it equals.