Simplify the expression cos x (sec
- simplify the trigonometric expression 4 cos x sec x cot x
- simplify the trigonometric expression 7 cos x sec x cot x
- simplify the expression cos 2x cos x sec 2x
- simplify the trigonometric expression 2 cos x sec x cot x
- simplify the trigonometric expression cos x sec x tan x
- simplify the expression cos x (sec x - cos x)
