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.