(1/2) Question 19 of the Gaokao Math exam 2025 10.7.2025 | Claire & Bruce
Published July 14, 2025
Views 4.00K | Likes 128 | Comments 6
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I'll do more explaination about sign function. First the proof on algebra works, of course, now let's disscusion its graph! When sin(a) is positive, y=a+theta, the angle a+theta rotates with unclockwise from angle a(the contrapositive situation: {a-theta} rotates with clockwise), and the sign founction would not rotat…
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- July 14, 2025
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