Question 1201964
 sin^2x/cosx + secx = sinx/cotx + 1/cosx is an identity. 

{{{ (sinx/cosx)*sinx +(1/cosx)}}}

{{{tanx*sinx+(1/cosx)}}}........ because sinx / cosx = tanx

{{{(sinx/cotx) +(1/cosx)}}}........ tanx = 1/cotx