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ex 24 , 25 , 26 , 27 , răspunsurile

Ex 24 25 26 27 Răspunsurile class=

Răspuns :

[tex]24)\:180-105=75\\ 25)\:3x+9y=3(x+3y)=3\cdot17=51\\ 26)\:d=2r=2\cdot8=16\\ 27)\:\sin{\alpha}=\frac{\sqrt{2}}{2}\Leftrightarrow \arcsin({\sin{\alpha})}=\arcsin\frac{\sqrt{2}}{2}\Leftrightarrow \alpha=\frac{\pi}{4}=\frac{180}{4}=45[/tex]