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Maximum problem of mathematical circular moving point. Urgent! !
Let t seconds pass, pq and circle O are at point E, at this time: ap.

=

t

Hellfire wall

=

2t

becquere

=

15

-

2t

pitch diameter of thread

=

13

-

t

According to the tangent length theorem, pe can be obtained.

=

dad

Quantitative Easing

=

quarterback

Physical quotient

=

15

-

t

A parallel line passing through point A is pq, and it intersects with bq at point F, then: bf.

=

15

-

3t

So, according to

ab?

+bf?

=

pq?

You can list the following information

The equation of T.

Director ab should have told you, right?