Im having a lot of trouble solving the following trig identities:
a) sec≤ x-2 sec x cos x + cos≤ = tan≤ x - sin≤ x
Trigonometric identity: secx cosx=1
sec≤x-2 sec x cos x + cos≤
=sec≤x + cos≤-2
Identity: sec≤x = 1/cos≤x
Use the Identity:
sec≤x + cos≤- 2
Now I am very confused, really unsure on how to prove this identity. I would greatly appreciate any helpful tips.
tanx+1/tanx =1/(sinx cosx )
Identity: 1/tanx = cotx :
Now im completely lost, the R.H.S side is turning out to be "csc x sec x" .
I would greatly appreciate any helpful tips, since I'm very confused here.