Question

convert to rectangular form r=20/(1-cos(theta))

Answer 1

\(\large \mathbb{r = \frac{20}{1-\cos \theta}}\)

Answer 2

\(\large \mathbb{r(1-\cos \theta ) = 20}\)

\(\large \mathbb{r-r\cos \theta = 20}\)

\(\large \mathbb{r = 20 +r\cos \theta }\)

Answer 3

substitute :
\(r\cos \theta = x\)
\(r^2 = x^2+y^2\)

Answer 4

\(\large \mathbb{x^2+y^2 = (20 +x)^2 }\)

simplify

Answer 5

thank you Ganeshie8

Answer 6

np :)
simplify it... x^2 cancels out... its just a parabola..