Given that cos(3x)=acos^x−bcosx is a trigonometric identity, what is the value of a+b ?

Similar Questions
  1. Blake is told that an angle has a cosine of −16√and is in Quadrant III. Use the Pythagorean identity sin2(θ)+cos2(θ)=1 ,
    1. answers icon 1 answer
  2. Prove the trigonometric identity.tan x+cot x/csc x cos x=sec^2 x __= sec^2x __= sec^2x __ = sec^2x __= sec^2x __ = sec^2x
    1. answers icon 1 answer
  3. Verify the trigonometric identity:[(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.
    1. answers icon 2 answers
    1. answers icon 1 answer
more similar questions