Question

sin60°+tg45°=cos30°+ctg45°, trebuie demonstrata egalitatea

Answer 1

$sin60^o= \frac{1}{2} \\ tg45^o=1 \\ cos30^o= \frac{1}{2} \\ ctg45^o=1$

Inlocuim si avem

$1+ \frac{ \sqrt{3} }{2} =1+ \frac{ \sqrt{3} }{2} \\ \frac{3}{2}$ ADEVARAT!