Sunday
April 20, 2014

Homework Help: Trigonometry

Posted by Rodrick on Sunday, December 9, 2012 at 11:25am.

Stuck :(



1. Simplify (5-√-36)(2+√-1)
A. 16 − 7i
B. 16 + 7i
C. 4 + 7i

2. Choose the point that lies on the curve r = 2 3 sin θ.
A. (-5, 3π/3)
B. (-2, π)
C. (1, π/2)

3. Which of the following is not an approximate solution of x5 1 = 0?
A. 0.3090 0.9511i
B. 0.8090 + 0.5878i
C. 0.3090 + 0.9511i
D. 0.8090 + 0.5878i

4. Simplify (√2-3i)
A. -7-6√2i
B. 2-9i
C.-5-6√2i

5. Simplify (2√cis47)(3√8cis89)
A. 48 cis 223
B. 48 cis 136
C. 12 cis 136

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