Question

cscx * tangx = senx
senx * cotgx = cosx
seny * cscy= 1

Answer 1

csc x * tg x =
1/sen x * sen x/cos x=
1/cos x ≠ senx falso

senx * cosx/senx =
cosx =cosx verdadero

seny*cscy=1
seny * 1/seny =1
1=1 verdadero