Pls tell me how i should draw this

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

Me answer this question: -2/3p + 1/5 - 1 + 5/6p i think the simplified expression is 1/6p - 4/5 correct me if i'm wrong, and explain it! if i have it right, just tell me. you so