SOLUTION: Verify the identity: cotθ = 1+cos2θ/sin2θ Which of the following three statements verifies the given equation? https://www.dropbox.com/s/evdzwaw8hcickof/Scr

Algebra ->  Trigonometry-basics -> SOLUTION: Verify the identity: cotθ = 1+cos2θ/sin2θ Which of the following three statements verifies the given equation? https://www.dropbox.com/s/evdzwaw8hcickof/Scr      Log On


   

Question 1103954: Verify the identity:
cotθ = 1+cos2θ/sin2θ
Which of the following three statements verifies the given equation?
https://www.dropbox.com/s/evdzwaw8hcickof/Screen%20Shot%202017-12-02%20at%2011.08.57%20PM.png?dl=0
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


It would be a big help if, in your statement of the problem, you show the identity correctly: cot%28x%29+=+%281%2Bcos%282x%29%29%2Fsin%282x%29

Of the three answer choices, only c uses a correct expression for cos(2x).
And the algebra for simplifying is all valid.

So choice c.