Intersection between a parametric equation and a linear equation

56 Views Asked by At

2Consider the parametric functions $f_1, f_2$ with $$f_1(x) = 3(60-x)\cdot \sin(3x)$$ and $$ f_2(x) = 3(60-x)\cdot \cos(3x).$$ Suppose you have a linear function: $$f_3 (x) = 1.5 x$$

How does one then calculate $f_1 \cap f_3$ and $f_2 \cap f_3$?