if y=cosx+sinx/cosx-sinx prove that dy/dx= sec2(45"+x) Share with your friends Share 1 Pooja Khanna answered this Here is the link for the answer to your query: https://www.meritnation.com/ask-answer/question/if-y-cosx-sinx-cosx-sinxprove-that-dy-dx-sec2-4-x/math/4054089 0 View Full Answer