Math, asked by sri3947, 11 months ago

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

Answers

Answered by madalasadashiv
0

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

Answered by dhmakaqueen
4

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}

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