Question

1)sin (п/2+L(альфа)=
2)ctg(360-L)=
3)sin(2п+L)=
4)tg(3п/2-L)=
5)sin (270-L)=

Answer 1

sin(Π/2+L)=cosL………… 2) ctg(360°-L)=-ctgL...... 3) sin(2Π+L)=sinL..... 4) tg(3Π/2-L)=ctgL.... 5) sin(270°-L)=-cosL