Verify Trigonometric Identity...1

[nycmathguy]

 

[MathLover1]

correct

but wondering how did you get 1/cos( x)?

 

[nycmathguy]

correct

but wondering how did you get 1/cos( x)?

The numerator becomes 1 after canceling. That left me with 1/cos x, is the same as sec x.