Answer:
True , -5i = 5*(0 - i) = 5*( cos 3π/2 + i*sin 3π/2) = 5*(cos 270 + i*sin 270)
Step-by-step explanation:
5*( cos 3π/2 radians + i*sin 3π/2 radians) = 5*(cos 270 degrees + i*sin 270 degrees)
? Please elaborate on your problems so that others can help you prevail
Answer:
I don't know if the math is right but I think the answer is<u> 0</u>
Answer:
y = -5
Step-by-step explanation:
-3x +9y = -57
Let x = 4
-3*4 +9y = -57
-12 +9y = -57
Add 12 to each side
-12+12 +9y = -57+12
9y = -45
Divide each side by 9
9y/9 = -45/9
y = -5
204/68=3, 207/69=3, 210/10=3, 213/71=3, 216/72=3, 219/73=3
