Polar form of a complex number is r( cos(theta) + i sin(theta) )
r is equal to the total distance created by the rectangular coordinates of the complex number
r = Root(4^2 + (-4)^2) = Root(32) = 4 Root(2)
To find theta, if a > 0, use arctan(b/a), where:
a = the first number
b = the second number
arctan (-4/4) = -45 degrees (-0.7854 radians)
Your answer is 4 Root(2) (cos(-45) + i sin(-45))
answer:
B. 2:6 is equal to 1:3
2 and 6 are both even so you can split both of them in half and you would get 1 and 3
Y = 3x -1. Y = 3x - 1
(-3) Y = x - 7. -3y = -3x + 21
-2y = 20
-2. = -2
Y = - 10
Y = 3x - 1
-10 = 3x - 1
+ 1. + 1
-9. = 3x
3. 3
-3 = x
(-3,-10)
Answer: a^3
Step-by-step explanation: Reduce the expression by cancelling the common factors
Hope this helps! :) ~Zane
This would be 11 hope you do good on your test