4) Which of the following statements are true regarding triangle ABC? (Just type the letters in the box)
a) sin(a)=sin()
b) csc(a)=5/3
c) tan(a)=tan(c)
d) sin(a)=cos(c)
e) cos(c)=sin(a)
sin(a)
1) tan(a)=
cos(a)
g) cos(a)=3/5
h) csc(a)=5/3