What is the product of 3√6cis(π8) and 2√5cis(7π6)?
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answer in form of : ___ cis (___)
Don't know a heck of a lot about this but
To multiply two complex numbers, you multiply their magnitudes and add their angles......
So we should have
3 * sqrt (6) * 2sqrt (5) cis [ ( pi/8 + (7pi / 6) ] =
6 sqrt (30) cis ( [ 3pi + 28pi ] / 24 ) =
6sqt (30) cis ( 31 pi / 24 )