Write the first trigonometric function in terms of the secon
     Write the first trigonometric function in terms of the second trigonometric function.  sin theta; cos theta  Choose the correct answer below.  A. 1/cos theta  B. cos theta - 1  C. plusminus squareroot 1 - cos^2 theta  D. 1 + cos theta  E. plusminus squareroot 1 - cos theta  F. 1 - cos^2 theta 
  
  Solution
sin theta
sin2theta+cos2theta=1
sin2theta=1-cos2theta
sin theta=+-sqrt(1-cos2theta)
correct option is c

