In XYZ, and X = 90° , and cos Z = 7/ 29. Find sin Z and tan Y.
sin Z = sqrt ( 29^2 - 7^2) / 29 = 6sqrt ( 22) / 29
tan Y = 7 / 6 sqrt (22) = 7sqrt22) / 132
Y
6sqrt (22) 29
X 7 Z
