Express the following complex numbers in the form re (a) 4 3i (b) -2 -i

(a) 5 {Cos 37° + i Sin 37°}

(b) 2.24 {Cos 206.6° + i Sin 206.6°}

Explanation:

(a) 4 + 3 i

Here it is written in standard form

Z = r (Cosθ + i Sinθ)

By comparison

r cosθ = 4

r sinθ = 3

Squarring both sides and then add

r = 5

By dividing

tanθ = 0.75

θ = 37°

So, it is written as 5 {Cos 37° + i Sin 37°}

(b) -2 - i

Here it is written in standard form

Z = r (Cosθ + i Sinθ)

By comparison

r cosθ = -2

r sinθ = - 1

Squarring both sides and then add

r = 2.24

By dividing

tanθ = 0.5

θ = 206.6°

So, it is written as 2.24 {Cos 206.6° + i Sin 206.6°}

i was thinking more like reflects green light, just not sure

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation: