How can you prove sinθ+cotθ(both over)/cosθ = tanθ+cscθ?

1 Answer
Mar 26, 2018

Verified, step by step below...

Explanation:

#(sinθ+cotθ)/cosθ = tanθ+cscθ#

  1. Split the numerator
    #sintheta/costheta+cottheta/costheta= tantheta+csctheta#

  2. Apply the quotient identity:#tantheta= sintheta/costheta#
    #tantheta+cottheta/costheta= tantheta+csctheta#

  3. Apply the quotient identity: #cottheta= costheta/sintheta#|
    #tantheta+(costheta/sintheta)/costheta= tantheta+csctheta#

  4. Simplify
    #tantheta+(cancelcostheta/sintheta)*1/cancelcostheta= tantheta+csctheta#

#tantheta+1/sintheta= tantheta+csctheta#

  1. Apply the reciprocal identity: #1/sintheta= csctheta#
    #tantheta+csctheta= tantheta+csctheta#