If `(1+sinalpha)/(1-sinalpha)=(m^(2))/(n^(2)), then sinalpha` is __________.

(1-cos alpha)/(sinalpha)=tan(alpha/2)

If 2 sinalpha+3cosalpha=2, " then " 3 sinalpha-2cosalpha = _________.

sinalpha=(1)/(2) cos beta=(1)/(2) then alpha+beta=

If (2sinalpha)/({1+cosalpha+sinalpha})=y , then ({1-cosalpha+sinalpha})/(1+sinalpha) =

If (2sinalpha)/(1+cosalpha+sinalpha) =x, then (1-cosalpha+sinalpha)/(1+sinalpha) =

If sin.alpha/2+cos.alpha/2=1.4, then: sinalpha=

If (2sinalpha)/(1+cosalpha+sinalpha)=x then find (1-cosalpha+sinalpha)/(1+sinalpha)

(a+2)sinalpha(2a-1)cosalpha=(2a+1)if tanalpha is

If (2sinalpha)/(1+cosalpha +sinalpha)=y , then prove that (1-cosalpha+sinalpha )/(1+sinalpha) is also equal to y.