For \( t \in(0,2 \pi) \), if \( A B C \) is an equilateral triangle with vertices \( A(\sin t,-\... VIDEO
For \( t \in(0,2 \pi) \), if \( A B C \) is an equilateral triangle with vertices \( A(\sin t,-\cos t), \mathrm{B}(\cos t, \sin t) \) and \( C(a, b) \) such that its othocentre lies on a cricle with centre \( (1,1 / 3) \), then \( \left(a^{2}-b^{2}\right) \) is equal tohttps://bit.ly/YTAI_PWAP https://www.pw.live
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