tg=sin/cos
cos^2A+sin^2A=1
sin^2A=1-1/9
sinA=2√2/3
tg=2√2/3*3
tg=2√
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tg=sin/cos
cos^2A+sin^2A=1
sin^2A=1-1/9
sinA=2√2/3
tg=2√2/3*3
tg=2√