Question

solve this question prove the question

Answer 1

L.H.S=sin-cos+1/sin+cos-1divide cos to both  n.r  and d.r
=sin/cos-cos/cos+1/cos  /  sin/cos+cos/cos-1/cos=tan+sec-1/tan-sec+1=tan+sec-(sec^2-tan^2) /tan-sec+1=tan+sec-(sec+tan)(sec-tan) / tan-sec+1=(tan+sec)(1-(sec-tan)) / tan-sec+1=tan+sec (tan-sec+1) / tan-sec+1=tan+sec
R.H.S1/ sec-tan=sec^2-tan^2 / sec-tan=(sec-tan)(sec+tan) / sec-tan=sec+tan
L.H.S=R.H.S