1.8°19':sin8°19'=0.1447,cos8°19'=0.9895;;
26°38’:sin26°38'=0.4443,cos26°38'=0.8957;
83°43‘:sin83°43’=0.9940,cos8343'=0.1094;
32°18‘:sin32°18'=0.5344,cos32°18'=0.8453;
10°01’:sin16°01'=0.2756,cos16°01'=0.9613;
35°:sin35°=0.5736,cos35°=0.8192.
2.sinA=0.3152,A=18°22'; cosB=0.5168,B=58°53'.