Mathematics
Senior High
線分OPの長さを求める問題です。どなたか解説お願いします🙏🏻🙏🏻
176
K
M
D
Pを通る直径をCDとすると、方べきの
定理より、
PC-PD = PA-PB = 2
5₂²₁
(OC-OP) (OD +OP) = 2
すなわち (3-OP)(3+OP)=2
2
2
3² - OP² = 224 OP² = 17
OP >014 OP = √2
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