+8 Find sin B
[asy] size(200); pair A,B,C,D; A=(0,8); B=(-15,0); C=(6,0); D=origin; draw(A--B--C--A--D); draw(rightanglemark(C,D,A,20)); dot("$A$",A,N); dot("$B$",B,W); dot("$C$",C,E); dot("$D$",D,S); label("15",B--D,S); label("$6$",D--C,S);read more .. +8 Find DB in the diagram below.
[asy] size(250); pair A,B,C,D; A=origin; B=(4,0); C=3dir(30); D=(2.3,0); draw(C--A--B--C--D); dot("$A$",A,SW); dot("$B$",B,SE); dot("$C$",C,N); dot("$D$",D,S); label("$2$",A--D,S); label("$30^\circ$",A,6dir(15));read more ..
