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-=Warning=- so far 4 of our maths teachers have attempted and not one of them have solved it yet. this is out of a 3u book but its in the extension section so ... 4u kinda work Question: Suppose tan² x = tan(x-a) tan (x-b). Show that tan 2x = 2sin(a)sin(b) / sin (a+b) have fun and good...