सिध्द कीजिए कि : ` (1+ sin theta - cos theta)/(1+ sin theta+ sin theta) = tan (1)/(2) theta`

Explanation

बायाँ पक्ष` =((1 – cos theta) + sin theta)/((1+ cos theta) + sin theta)`
`= (2 sin^(2).(theta)/(2)+ 2 sin .(theta)/(2)cos .(theta)/(2))/(2 cos^(2) .(theta)/(2)+ 2 sin.(theta)/(2)cos.(theta)/(2))`
`=(2sin.(theta)/(2)(sin.(theta)/(2)+ cos.(theta)/(2)))/(2cos.(theta)/(2) (cos.(theta)/(2)+sin.(theta)/(2)))=(sin.(theta)/(2))/(cos.(theta)/(2))`
`= tan .(1)/(2) theta =` दायाँ पक्ष।