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Nav123's latest activity
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NNav123 replied to the thread justifying a trig for inequality.\frac{\pi}{2}<2<\pi (1) 0<\pi-2<\frac{\pi}{2} so its in the first quadrant or using your logic: \cos(\pi-2)=-\cos(2) but \cos(2)<0...
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NNav123 replied to the thread 1 on 1 HSC Tutoring | 99.80 Dux Of Penrith High 2019 | 99-3U 98-4U 4 Years experience|.bump