A conic section whose focus is at the pole has the equation r=2/1+cosθ . Which of the following equations is the directrix of the conic?

rcosθ = -2
rcosθ = 2
rsinθ = -2
rsinθ = 2

I think its the second

The answer is rcosθ = 2, I took the test

b

step-by-step explanation:

the word superfluous means unnecessary

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p