1.Oblicz: 2sin60 - 4cos45 + 3tg60 + 5ctg45 =

2sin60*-4cos45*+3tg60*+5ctg45*=2×√3/2-4×√2/2+3×√3+5×1=√3-2√2+3√3+5=4√3-2√2+5

2sin60 - 4cos45 + 3tg60 + 5ctg45 =√3-2√2+3√3+5

2*sin60 - 4*cos45 + 3*tg60 + 5*ctg45 = 2√3 /2 - 4√2/2 + 3√3 + 5*1= 4√3 - 2√2 + 5 ~= 6,92-2,82+5 = 9,1