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What is the principal argument of the complex number (r, θ) = (64, π/19) ?
84
64
49
What is the principal argument of the complex number (r, θ) = (13, π/9)?
π/19
π/9
π/4
What is the principal argument of the complex number 4i?
π/2
-π/2
What is the principal argument of the complex number (r, θ) = (17, π/9)?
π/91
What is the modulus of the complex number 2-3i?
5\sqrt{5}5
12\sqrt{12}12
13\sqrt{13}13
8
17
9
What is the modulus of the complex number 3+4i?
4
5
6
What is the modulus of the complex number -1+i?
2\sqrt{2}2
3\sqrt{3}3
What is the modulus of the complex number (r, θ) = (3, π/4)?
3
7
What is the principal argument of the complex number 1+i?
-π/4
It is done.