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For your reference

Call me Bravo

For your reference

Call me Bravo

For your reference

Annie❤️

請問第G題的
10K^2-30K-20=0
是怎麼來的?

Call me Bravo

Here you are

Annie❤️

請問第H題假設的A B是為什麼?

Call me Bravo

We get x=1/2? Do you know? A and B are the intersections with the circle

Annie❤️

噢我懂了 謝謝🙏

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