sin 72 - sin 32
cos 94 - cos 76
tg 38 + tg22
tg 58 - tg 28
Dau funda


Răspuns :



sin72-sin32=0.7229466057
cos94-cos76=0.4782714440
tg38+tg22=0.3200406442
tg58-tg28=-120070712