Question

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Write 18(cos169° + isin169°) in rectangular form. Round numerical entries in the answer to two decimal places. (Show work)

Answer 1

The rectangular form is z = -17.67 + i 3.43

Explanation:

Answer 2

-17.67 +3.43i

Explanation:

Carry out the indicated math:

18 cis 169° = (18·cos(169°) +i·18·sin(169°)) = (18·(-0.9816) +i·18·0.1908)

= -17.67 +i·3.43