Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 1 - 
i, z2 =2 - 2i
A. 4
(cos 345° + i sin 345°)
B. (2 + 2
)(cos 255° + i sin 255°)
C. 4
(cos 255° + i sin 255°)
D. 4(cos 345° + i sin 345°)
Answer: C
Mathematics
You might also like to view...
Find all angles in [0°, 360°) that satisfy the equation.tan ? = 1
A. {225°, 315°} B. {45°, 315°} C. {135°, 225°} D. {45°, 225°}
Mathematics
Decide whether or not the given equation is an identity.sin2 ? - cos2 ? = 2 cos2 ? - 1
A. Yes B. No
Mathematics
Solve the system of equations. If there is no solution to the system, give a reason.
x + 
y = 4 x - y = -2
A. No solution; inconsistent system of equations B. (3, 5) C. (-3, 6) D. (2, 6)
Mathematics
Find the inverse of the matrix, if it exists.
What will be an ideal response?
Mathematics