Answer:
v ≈ (3.28512, 20.74146)
Step-by-step explanation:
v = 21(cos(81°), sin(81°))
v ≈ (3.28512, 20.74146) . . . . (x, y) components
The notation varies among authors. The vector can be written as ...
(r, θ) = (21, 81°)
r∠θ = 21∠81°
r cis θ = 21 cis 81°
v = 21·e^(i·9π/20)
(x, y) ≈ (3.28512, 20.74146)
v = 3.28512i +20.74146j . . . . perhaps this is the vector notation you want (i and j are unit vectors in the x- and y-directions, respectively)
we know that
If lines m and n are parallel
then
m<1 and m<5 are corresponding angles
so
m<5=m<1
therefore
m<5=135 degrees
The answer to this question would be 180,693 as if you add each digit in this answer then you get 27 which is divisible by 9
49 kms : 7 tanks
divide both sides by 7
equals
7 kms : 1 tank
1. Factor the expression 
2. Since 
is placed in the denominator of the given expression, then 
3. Now the expression can be simplified:
