Question

n1 Which of the following is the polar form of -2? mg: 3 out of Select one: o 2cisa 2cis 22 o 4cis o 2cis Check
Let z = -1 -i. In the polar form of z, which of the following is the value for the argument? Select one: a. O O c. O d. ? o
un 3 Let z = 1-i and w = 1 - 2i. What is the real part of z/w? (Express your answer as a decimal.) ing: 5 out of Answer: Chec
on 4 One of the cube roots of 5 - 3i, with real part and imaginary part rounded to 4 decimal places, is -0.6061 + bi. What is
√3+ √5i. What is the modulus of 1 + i Answer: Check
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Answer #1

Which of the following is the polar form of -2. a +ib=r(cos 8+i sin 8) r= va? +82, 8= tan-(0) a= -2, b = 0 r = 14+0 = 2 -2=2(

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