Question

if Cos A equal to 3 by 5 then find the value of sinA-cosA ÷2tan A

​

Answer 1

Answer:

8/15

Step-by-step explanation:

cos=3/5,sin=4/5,tan=4/3

then

4-3/5÷2×4/3

1/5×8/3

8/15

Answer 2

Answer:

ur ans is

$\frac{3}{40}$

hope it may helps u

plz mark it brainliest

Step-by-step explanation:

$\cos(a) = \frac{3}{5} \\ thus \: by \: the \: formul \: of \: cos \: \\ base = 3 \: \: nd \: hypo = 5 \\ with \: the \:help \: of \: pythogors \: therom \: we \: \: get \: \\ prep = 4 \\ thus \\ \sin(a) = \frac{4}{5} \: nd \tan(a) = \frac{4}{3} \\ now \\ = \frac{\sin(a) - \cos(a)}{2 \tan(a)} \\ = \frac{ \frac{4}{5} - \frac{3}{5} }{2 (\frac{4}{3}) } \\ = \frac{ \frac{1}{5} }{ \frac{8}{3} } \\ = \frac{3}{5(8)} \\ = \frac{3}{40}$