You should know the following trigonometric identities.

(A)

(B)

(C)

(D)

Use theseto derive the followingimportantidentities, which you should also know.

(a) (use C and

(b)

(c)

(d)

(e)

(f)

(g)

If anybody can finish these would be a tremendous help to me

took me over 30min just to write this in latex form... sigh...

i really hope someone will reply on how to do these with 1 or 2 as a example so i can do the rest

Thanks in advance