Calculate CD as? y=x+3
∴? ∠CDH? =? ∠DCO? =? 45
Again? PQ⊥CD? (Tangent)
∴? QK? =? Perceptual quantization
∴? PQ? =? (√2/2) afternoon
Again? P( 1,M),M( 1,4)
∴? PH? =? m
∴? PM? =? 4 meters
∴? PQ? =? (√2/2)(4-m)? =? 2√2? -? (√2/2) meters
∴? PQ^2? =? 8? -? 4m? +? ( 1/2)m^2
Again? A(- 1,0),H( 1,0)
∴? Huh? =2
∴? AP^2? =? AH^2? +? PH^2? =? 2^2? +? m^2? =? m^2? +4
Again? AP? =? QP?
∴? AP^2? =? QP^2
Namely. m^2? +4? =? 8? -? 4m? +? ( 1/2)m^2
Finishing:
m^2? +? 8m? -? 8? =? 0
Solution:
m 1? =? -4? +? 2√6
m2? =? -4? -? 2√6? (Give up) [I remember that the point P of this question is above the axis of symmetry]
∴? m? =? -4? +? 2√6
∴? P( 1,-4? +? 2√6)
Add some points, it's hard.