9514 1404 393
Answer:
(a) 12∠0.1
(b) 3∠-0.1
(c) (1/3)∠-0.1
Step-by-step explanation:
In this answer, we will use the notation r∠φ to identify the "r-part" and the "φ-part" of your polar-form complex numbers.
Given: z = 3∠0.1
(a) 4z = 12∠0.1 . . . . . the r-part is multiplied by the scalar
(b) z* = 3∠-0.1 . . . . . the conjugate is formed by negating the angle
(c) 1/z = (1/3)∠-0.1 . . . . the reciprocal inverts the magnitude and negates the angle.
The answer would be D- 146 degrees
I say that the answer is 7 bc it’s -8+15
Answer:
Step-by-step explanation:
f ,g,g, mm gm
Shared ratio is 5 : 8
Total parts
5+8 = 13
If we want to get a single part, it has to be divided by 13.
390 / 13 = 30
therefore,
5 : 8
1*5 : 1*8
30*5 : 30*8
150 : 240