NEED ASAP PLS HELP

given: XZ WY, WXZ and YXZ are right triangles. Step 1: cos(W)=WZ/y; ycos(W)=Wz. Which step contains the first error in calculation

NEED ASAP PLS HELP given XZ WY WXZ and YXZ are right triangles Step 1 cosWWZy ycosWWz Which step contains the first error in calculation class=