Question

How to derive this equation ??​

Answer 1

Answer:

Political awareness is extremely important for democracy. 1. Without political awareness, people cannot make correct decisions about whom to vote for. ... Without political awareness, people cannot keep a check on the arbitrary actions of the government

Answer 2

We know that the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius. So add 21 to both sides to get the constant term to the righthand side of the equation. Then complete the square for the y terms.