If `5 tan theta =4, \" write the value of \" ((costheta- sintheta ))/((costheta+ sintheta)).`

If `5 tan theta =4, \" write the value of \" ((costheta- sintheta ))/((costheta+ sintheta)).`

If `5 tan theta =4, \" write the value of \" ((costheta- sintheta ))/((costheta+ sintheta)).`