Jak ktos potrafi to prosze jak najszybciej :)
Tg2x * tg10x = 1
tg2x = 1/ tg10x
tg2x = ctg10x
tg2x = tg(π/2-10x)
2x=π/2-10x+kπ
12x=π/2+kπ
x=π/24+kπ/12
Pozdrawiam
Hans
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Tg2x * tg10x = 1
tg2x = 1/ tg10x
tg2x = ctg10x
tg2x = tg(π/2-10x)
2x=π/2-10x+kπ
12x=π/2+kπ
x=π/24+kπ/12
Pozdrawiam
Hans