Óïð.1171 ÃÄÇ Íèêîëüñêèé Ïîòàïîâ 9 êëàññ (Àëãåáðà)

Ðàññìîòðèì âàðèàíò ðåøåíèÿ çàäàíèÿ èç ó÷åáíèêà Íèêîëüñêèé, Ïîòàïîâ 9 êëàññ, Ïðîñâåùåíèå:

1171. Âû÷èñëèòå:

à) 2sin(?/6)+3cos(?/6)-2tg(?/6)-1,5ctg(?/6)+3/sin(?/6)+1/cos(?/6);

á) 2sin(45°)+2cos(45°)-3tg(45°)-10ctg(45°)+2/sin(45°)-4/cos(45°);

â) sin(?/3)+cos(?/3)-2tg(?/3)-1,5ctg(?/3)+1/cos(?/3)+3/sin(?/3);

ã) sin(?/2)-6cos(?/2)+3tg(0)+5/cos(0);

ä) 2sin(180°)-3cos(180°)+4tg(180°)+2/cos(180°);

å) 3sin(3?/2)-4cos(3?/2)+5ctg(3?/2)+1/sin(3?/2);

æ) (sin(?/4)cos(?/3)-cos(?/4)sin(-?/3))/(tg^2(?/4)-sin^2(?/2)cos^4(3?/2));

ç) (1/cos(-30°)+1/sin(-30°))/(sin^2(-60°)+1/sin(-30°)).