100*3.14/180=1,8рад.
105*3.14/180=1,7рад.
1) (√8-3)*(3+2√2)= (√8-3)(3+√8)=8-9=-1
2) (√27-2)*(2-3√3)=-(2-√27)(2-√27)=-(2-√27)²=-4+4√27-27=-31+4√27
3) (√50+4√2)*√2=√100+4√4=10+4*2=10+8=18
56-a-38<span>=(56-38)-а=18-а</span>
10*8 = 80
4*8=32
10*4 = 40
3*4 = 12
10*5 = 50
6*5 = 30
10*7 = 70
5*7 = 35