marshall16 marshall16
  • 02-03-2018
  • Mathematics
contestada

Write -3r+3u in polar form PLEASE HELP

Respuesta :

calculista
calculista calculista
  • 11-03-2018
we have that
 -3r+3u

Step 1
Use the distance formula to find the radius
r = √(x^2 + y^2)
 (x,y)----------> (
-3,3)
r= √(-3^2 + 3^2)=√18=3√2

Step 2
Use the tangent to find the angle  
θ = arctan(y/x)  
θ = arcTan(3/-3)= -45°-------> II Quadrant
then 
θ=180-45=135°

Step 3 
write in polar form
(x,y)------------> (r, θ)
so
(-3,3)----------> (3√2, 135°)

the answer is (3√2, 135°)
Answer Link

Otras preguntas

Your roommate is complaining about sore eyes and blurred vision after prolonged computer use. what computer-related disorder may she have?
How were jewish sons and daughters educated differently?
How does the nervous system and skeletal system and muscular system work togeather
how can I condense this expression into a single logarithm?
what is an appropriate label for the yellow lines in this map
Understanding tens and ones
How do the number of chromosomes in a female scorpion's egg cells compare with the number in her body (somatic) cells? Question 12 options: The number of chromo
the y-intercept or the line 7x-4y=8
If they are similar or not?
What are the solutions to get rid of the crisis of liquidity faced by the country in the shadow of war.