Answer:
factor and set each factor equal to zero.
x ≈ −
8.02641268
, 0.23670905
, 5.78970363
Step-by-step explanation:
aight, this is my best shot. hope this helps
Answer:
The angle being shown is an acute angle
Step-by-step explanation:
The correct value of (3cis(pi/6))³ is 27i.
<h3>What is Complex Number?</h3>
Complex numbers are numbers that consist of two parts — a real number and an imaginary number. Complex numbers are the building blocks of more intricate math, such as algebra.
Given the complex number in polar coordinate expressed as
z = r(cos∅+isin∅)
zⁿ = {r(cos∅+isin∅)}ⁿ
According to DeMoivre’s Theorem;
zⁿ = rⁿ(cosn∅+isinn∅)
Given the complex number;
(3cis(pi/6))³
= {3(cosπ/6 + isinπ/6)}³
Using DeMoivre’s Theorem;
= 3³(cos3π/6 + isin3π/6)
= 3³(cosπ/2 + isinπ/2)
= 3³(0 + i(1))
= 27i
Thus, the correct value of (3cis(pi/6))³ is 27i.
Learn more about Complex number from:
brainly.com/question/10251853
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-2(5)^2+2(5)-3
-2(25)+10-3
-50+10-3
-40-3
=-43
It helps you because it's the same fact family
