Question Answered step-by-step 22. Find the following. 3cis 23. Solve the equation. x* + 81i = 0… Show more Math Trigonometry MATH 170 Leave a Comment / Uncategorized / By admin Question Answered step-by-step 22. Find the following. 3cis 23. Solve the equation. x* + 81i = 0… Show more Math Trigonometry MATH 170