So if OP is a segment joining center O to point P, the MN is touching the circle on point P so it would be line MN.
You didn’t post the question. If you post the questions, I can help.
Also, I think you can search the question and find the answers… I remember doing this one.
<span>Given a function, if you suspect a root lies near a specific point on the number line, you can evaluate the function at several nearby values and see whether the evaluation is positive or negative. Using a calculator, you should find two real numbers that are at distance 0.01 from one another, such that one real number evaluates positive, and the other evaluates negative. Then the interval between these values contains a root.</span>
