Images TG PI X

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Tg pi x. TG(2x+пи/4)=-1. TG пи x/4 -1. TG(X+Pi/4). TG X/2+Pi/4.
TG(2x+пи/4)=-1. TG пи x/4 -1. TG(X+Pi/4). TG X/2+Pi/4.

See also