Write the Word or Phrase That Best Completes Each Statement $$0 \leq x < 2 \pi$$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
Use a calculator to solve the equation on the interval 0 . Round the answer to one decimal place if necessary. $$0 \leq x < 2 \pi$$
- $$e ^ { x } = \cos x$$