how do I solve this?

Question

(cos ө+1)/ (cos ө - 1)

The answer is supposed to be:

(1 + sec ө)/ (1- sec ө)

Answer 1

You don't mean "solve"

It must say:

prove (cos ө+1)/ (cos ө - 1) = (1 + sec ө)/ (1- sec ө)

Right Side
= (1 + 1/cos ө)/(1 - 1/cos ө)
= [(cos ө + 1)/cos ө]/[(cos ө - 1)/cos ө]
= (cos ө + 1)/(1 - cos ө)
= Left Side

Answer 2

second last line should have been

= (cos ө + 1)/(cos ө - 1)
= LS