If $tan A=\frac{5}{12}$, then the value of cos A= ________.

$\frac{12}{5}$ $\frac{13}{5}$ $\frac{5}{13}$ $\frac{12}{13}$

$\frac{12}{13}$

tanA =  \(\frac{5}{12}\) P = 5  &  B = 12 P2 + B2 = H2 52 + 122 = H2 H = 13 Now , cos A = \(\frac{12}{13}\)