diketahui 5tanX =13 sinx (Xlancip ) tentukan nilai cosX sinX dan tan X

Trigonometri

5 tan x  = 13 sin x
5  sin x/ cos x = 13 sin x
cos x = 5/13 = x/r
y = √(r²-x²)
y = √(13²-5²)
y = 12

nilai
cos x = x/r = 5/13
sin x = y/r = 12/13
tan x = y/x = 12/5