Question

cos a=5/13 evaluate sin a-cos a /2 tan a

Answer 1

hello Swati here is your answer by Sujeet,


that's all

Answer 2

$cosA = \frac{5}{13} \: \\ So, sinA = \frac{12}{13} \ \\ \: tanA = \frac{12}{5} \\ cotA = \frac{5}{12} \\ \frac{(sinA - cosA)}{2tanA} \\ = \frac{ ( \frac{12}{13} - \frac{5}{13} )}{(2× \frac{12}{5} )} = \frac{7}{13} × \frac{5}{24} \: = \frac{35}{312}$