Question

Cos$/(1-sin$)+(1-sin$)/cos$=2sec$

Answer 1

Step-by-step explanation:

cos$/(1-sin$)+(1-sin$)/cos$

=cos²$+(1-sin$)²/cos$(1-sin$)

=cos²$+1+sin²$-2sin$/cos$(1-sin$)

=2-2sin$/cos$(1-sin$)

=2(1-sin$)/cos$(1-sin$)

=2/cos$

=2sec$