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# can someone check this to ill give you all the hearts :D

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Multiply. √3/2cis(2π/9)·√6/4cis(3π/2). Which is the answer?

a. 2√3/8cis(31π/18)

b. 3√2/8cis(π/3)

c. 3√2/8cis(31π/18)

d. 2√3/8cis(π/3)

I got answer a but im not sure if it's correct

Aug 25, 2021

#1
+115733
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Or better still, show me your working and I will tell you if it is correct.

Aug 25, 2021
#2
+68
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i got 2sqrt2/8 cis 31pi/18

Aug 25, 2021
#3
+115733
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i got    3sqrt2/8 cis 31pi/18

check

$$\frac{\sqrt3}{2}*\frac{\sqrt6}{4}=\frac{\sqrt{2*9}}{8}=\frac{3\sqrt2}{8}$$

Melody  Aug 25, 2021